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  1.  
  2.  
  3.  
  4. A DESCRIPTION OF A COMPUTER-USABLE DICTIONARY FILE BASED ON
  5. THE OXFORD ADVANCED LEARNER'S DICTIONARY OF CURRENT ENGLISH
  6.  
  7. Roger Mitton,
  8. Department of Computer Science,
  9. Birkbeck College,
  10. University of London,
  11. Malet Street,
  12. London WC1E 7HX
  13.  
  14. June 1992  (supersedes the versions of March and Nov 1986)
  15.  
  16.  
  17.      In 1985-86 I produced a dictionary file called CUVOALD  (Computer
  18. Usable Version of the Oxford Advanced Learner's Dictionary).  This was
  19. a partial dictionary of English in computer-usable  form  -  "partial"
  20. because  each  entry  contained  only some of the information from the
  21. original  dictionary,  and  "computer-usable"  (rather   than   merely
  22. "computer-readable")  because  it  was in a form that made it easy for
  23. programs to access it.  A second file, called CUV2,  was  produced  at
  24. the  same time.  This was derived from CUVOALD and was the same except
  25. that it also contained all inflected forms explicitly, eg it contained
  26. "added",  "adding" and "adds" as well as "add".  I have now added some
  27. information to each entry and some more entries to CUV2, to produce  a
  28. new version of CUV2.  This document describes this new file.
  29.  
  30.      These files were derived  originally  from  the  Oxford  Advanced
  31. Learner's  Dictionary of Current English [1], third edition, published
  32. by the Oxford University Press, 1974, the machine-readable version  of
  33. which  is  available to researchers from the Oxford Text Archive.  The
  34. task of deriving them from the machine-readable OALDCE was carried out
  35. as  part  of  a research project, funded by the Leverhulme Trust, into
  36. spelling correction.  The more recent additions have been carried  out
  37. as  part  of my research as a lecturer in Computer Science at Birkbeck
  38. College.
  39.  
  40. THE FILE FORMAT
  41.  
  42.      CUV2 contains 70646  entries.   Each  entry  occupies  one  line.
  43. Samples  are  given at the end of this document.  The longest spelling
  44. is 23 characters; the longest pronunciation is also  23;  the  longest
  45. syntactic-tag  field  is  also  (coincidentally)  23;  the  number  of
  46. syllables is  just  one  character  ('1'  to  '9'),  and  the  longest
  47. verb-pattern  field  is  58.  The fields are padded with spaces to the
  48. lengths of the longest, ie 23, 23, 23, 1 and  58,  making  the  record
  49. length  128.   The spelling begins at position 1, the pronunciation at
  50. position 24, the syntactic-tag field at position  47,  the  number  of
  51. syllables  is  character  70,  and  the  verb-pattern  field begins at
  52. position 71.  The file is sorted in ASCII  sequence;  this  means,  of
  53. course, that the entries are not in the same order as in the OALDCE.
  54.  
  55.                                                                 Page 2
  56.  
  57.  
  58.  
  59. WHAT THE DICTIONARY CONTAINS
  60.  
  61.      Each entry consists of a spelling, a pronunciation, one  or  more
  62. syntactic  tags (parts-of-speech) with rarity flags, a syllable count,
  63. and a set of verb patterns for verbs.
  64.  
  65.      The first file derived from the OALDCE  (CUVOALD)  contained  all
  66. the headwords and subentries from the original dictionary - subentries
  67. are words like "abandonment" which comes under the headword  "abandon"
  68. -  except for a handful that contained funny characters (such as "Lsd"
  69. where the "L" was a pound sign).  Subentries were not included if they
  70. consisted  of  two  or three separate words that occurred individually
  71. elsewhere in the dictionary, such as "division bell" which comes under
  72. the   headword  "division",  except  when  the  combination  formed  a
  73. syntactic unit not immediately predictable from its  constituents,  eg
  74. "above  board",  which  is listed as an adverb.  To this list of about
  75. 35,000 entries, I added about 2,500 proper names -  common  forenames,
  76. British   towns   with   a   population   of  over  5,000,  countries,
  77. nationalities, states, counties and major  cities  of  the  world.   I
  78. would like to have added many more proper names, but I didn't have the
  79. time.
  80.  
  81.      The second version of the file (CUV2) contained all these entries
  82. plus  inflected  forms  making a total of about 68,000 entries.  Since
  83. 1986 I have made a number of corrections, added the rarity  flags  and
  84. the  syllable  counts  and  inserted about 2,000 new entries.  The new
  85. entries, nearly all of which were derived forms of  words  already  in
  86. the  dictionary,  were  selected from a list of several thousand words
  87. that occurred in the LOB Corpus[3] but were not in CUV2.  I also  made
  88. changes  to  existing  entries  where  these  were  implied by the new
  89. entries; for example, when adding  a  plural  form  of  a  word  whose
  90. existing  tag was "uncountable", it was necessary to change the tag of
  91. the  singular  form.   I  also  added  about  300  reasonably   common
  92. abbreviations (see note below).
  93.  
  94.      A number of words (ie spellings) have more than one entry in  the
  95. OALDCE,  eg "water 1" (noun) and "water 2" (verb).  In CUV2, each word
  96. has only one entry unless it  has  two  different  pronunciations,  eg
  97. "abuse"  (noun  and verb).  I have departed from this rule in the case
  98. of compound adjectives, such as "hard-working", which have a  slightly
  99. different   stress   pattern   depending  on  whether  they  are  used
  100. attributively ("she's a hard-working girl") or  predicatively  ("she's
  101. very hard-working").  These are entered only once; they generally have
  102. the attributive stress pattern except when the predicative one  seemed
  103. the  more natural.  (See also the note below on abbreviations.) I have
  104. also given only one entry to those words that  have  strong  and  weak
  105. forms  of  pronunciation, such as "am" (which can be pronounced &m, @m
  106. or m).  Generally it is the strong form that is entered.
  107.  
  108.      As regards the coverage  of  the  dictionary,  readers  might  be
  109. interested  in  a paper by Geoffrey Sampson [4] in which he analyses a
  110. set of words from a sample of the LOB Corpus[3] that were not in CUV2.
  111. The  recent  additions  should have gone some way to plugging the gaps
  112. that his study identified.
  113.  
  114.                                                                 Page 3
  115.  
  116.  
  117.  
  118. THE SPELLINGS
  119.  
  120.      The spelling contains the characters "A"  to  "Z",  "a"  to  "z",
  121. hyphen, apostrophe, space, umlaut or diaeresis (HEX 22), cedilla (3C),
  122. circumflex (5E),  acute  (5F),  grave  (60)  and  tilde  (7E).   These
  123. diacritic  characters  precede the letter that they mark, eg "se~nor".
  124. (There are also the characters "5" and "6" in "MI5" and "MI6".)
  125.  
  126. THE PRONUNCIATIONS
  127.  
  128.      The pronunciation uses a set of  characters  very  like  the  one
  129. adopted  by  the  Alvey Speech Club for representing IPA in ASCII [2].
  130. The system is as follows:
  131.  
  132.  i   as in  bead       N  as in  sing
  133.  I           bid       T         thin
  134.  e           bed       D         then
  135.  & (ampsnd)  bad       S         shed
  136.  A          bard       Z        beige
  137.  0 (zero)    cod      tS         etch
  138.  O (cap O)  cord      dZ         edge
  139.  U          good
  140.  u          food       p t k b d g
  141.  V           bud       m n f v s z
  142.  3 (three)  bird       r l w h j
  143.  @  "a" in about
  144.  
  145. eI   as in   day      R-linking (the sounding
  146. @U            go      of a /r/ at the end of a
  147. aI           eye      word when it is
  148. aU           cow      followed by a vowel)
  149. oI           boy      is marked R
  150. I@          beer      eg fAR for "far"
  151. e@          bare      (compare "far away"
  152. U@          tour      with "far beyond").
  153.  
  154. Primary stress: apostrophe eg @'baUt ("about")
  155. Secondary stress : comma eg ,&ntI'septIk
  156. Plus-sign as in "courtship" and "bookclub"
  157. 'kOt+Sip  'bUk+klVb
  158.  
  159. When the spelling contains a space and/or a
  160. hyphen, the pronunciation has one also, eg
  161. above board  @,bVv 'bOd   air-raid  'e@-reId
  162.  
  163. THE SYNTACTIC TAGS
  164.  
  165.      Every entry in the dictionary has  at  least  one  syntactic  tag
  166. (part-of-speech  code).   If  an  entry has more than one (eg "report"
  167. noun and verb), they are in ASCII order and separated  by  commas.   A
  168. code  consists  of three characters, the first two being the syntactic
  169. tag and the third a frequency class.  The first is one of the  capital
  170. letters "G" to "Z" (inclusive), which have the following meanings:
  171.  
  172.  
  173.                                                                 Page 4
  174.  
  175.  
  176. G  Anomalous verb
  177. H  Transitive verb
  178. I  Intransitive verb
  179. J  Both transitive and intransitive verb
  180.  
  181. K  Countable noun
  182. L  Uncountable noun
  183. M  Both countable and uncountable noun
  184. N  Proper noun
  185.  
  186. O  Adjective
  187. P  Adverb
  188. Q  Pronoun
  189. R  Definite article
  190. S  Indefinite article
  191. T  Preposition
  192. U  Prefix
  193. V  Conjunction
  194. W  Interjection
  195. X  Particle
  196. Y  Abbreviation
  197. Z  Not classified
  198.  
  199.      Into the M class go nouns used frequently in both ways,  such  as
  200. "coffee"  ("a  pot  of  coffee", "two coffees please"), and also nouns
  201. that  are  predominantly  one  or  the  other;  they  may  be   mainly
  202. uncountable  with  an  occasional  countable  use, such as "waste" and
  203. "understanding" ("the barren wastes", "reach  an  understanding"),  or
  204. mainly  countable  with an occasional uncountable use, like "ceremony"
  205. and "line" ("too much ceremony", "stand in line").
  206.  
  207.      The second character in the tag code is either in the  group  "0"
  208. (zero)  to  "9", "@", or "A" to "E", in which case it indicates how to
  209. form inflexions, or it is one of the characters "a"  to  "z",  "+"  or
  210. "-",  in  which  case  it gives some extra information about the word.
  211. (Abbreviations have the following extra  code  symbols,  not  used  by
  212. other entries:  ">", ")", "]", "}", ":", "=" and "~".)
  213.  
  214.      The inflexion codes "0"  to  "5"  are  for  verbs  and  have  the
  215. following meanings:
  216.  
  217. 0  stem+s, stem+ing, stem+ed (like "work")
  218. 1  stem+es, stem+ing, stem+ed (like "wish")
  219. 2  replace final "e" by es, ing or ed (like "love")
  220. 3  replace final "y" by ies, ying or ied (like "apply")
  221. 4  stem+s; double final letter +ing or +ed (like "abet")
  222. 5  all inflexions are given in full since at least one of them
  223.    is irregular
  224.  
  225.      The inflexion codes "6" to "@" are for nouns:
  226.  
  227. 6  add s to form the plural (like "cat")
  228. 7  add es (like "fox")
  229. 8  replace final y by ies (like "pony")
  230. 9  plural is the same as the singular (like "sheep")
  231.  
  232.                                                                 Page 5
  233.  
  234.  
  235.    (if there is another plural form, this is entered
  236.     separately, eg "herring" - "shoals of herring/
  237.     we'll have the herrings for tea")
  238. @  no plural
  239.  
  240.      The remaining inflexion codes "A" to "E" are for adjectives:
  241.  
  242. A  No -r or -st form
  243. B  Comp is +r, Sup is +st (like "subtle")
  244. C  +er, +est (like "light")
  245. D  Change final y to ier, iest (like "heavy")
  246. E  Comp or Sup irregular - given in full
  247.  
  248.      The letters "a" to "z" give extra  information  about  the  word.
  249. The letters "a" to "h" follow verbs, with the following meaning:
  250.  
  251. a  3rd person sing present tense
  252. b  present participle (-ing form)
  253. c  past tense
  254. d  past participle
  255. e  some other part of the verb
  256.  
  257. f to h follow anomalous verbs only:
  258.  
  259. f  contraction of pronoun with verb
  260. g  contraction of verb with "not"
  261. h  other contraction
  262.  
  263.      The letters "i" to "o" follow nouns:
  264.  
  265. i  singular form (pl is irregular or non-existent)
  266. j  plural form
  267. k  plural in form but behaves like a singular,
  268.    eg "economics"  (may be used as a plural also,
  269.    eg "acoustics is a modern science/ the acoustics
  270.       of this hall are dreadful")
  271.  
  272. l to o follow proper nouns only:
  273.  
  274. l  forenames of people
  275. m  countries, states, counties
  276. n  towns and cities
  277. o  other
  278.  
  279.      The letters "p" to "t" follow adjectives:
  280.  
  281. p  only used predicatively
  282. q  only used attributively
  283. r  comparative
  284. s  superlative
  285. t  can be attached to a preceding word by a hyphen
  286.  
  287.      The remaining small letters (and "+") are as follows:
  288.  
  289. u  adverb (not interrog or relative)
  290.  
  291.                                                                 Page 6
  292.  
  293.  
  294. v  interrogative adverb
  295. w  relative adverb
  296. +  adverbial particle
  297.  
  298. x  pronoun (not interrog or relative)
  299. y  interrogative pronoun
  300. z  relative pronoun
  301.  
  302.      If the first character of the tag code is "R" to "X" or "Z",  the
  303. second   character  is  always  "-",  ie  there  is  never  any  extra
  304. information about words in these classes.
  305.  
  306.      The  following  characters  are  used   only   after   "Y"   (the
  307. abbreviation code):
  308. >  singular noun  (see notes below)
  309. )  plural noun
  310. ]  both sing and plur
  311. }  uncountable noun
  312. :  title
  313. =  proper noun
  314. ~  other
  315.  
  316.      Examples of tags are:  K7, countable noun that forms  its  plural
  317. by  adding  es;  H3,  transitive  verb  that forms its inflexions like
  318. "apply"; Ic, past tense of an intransitive verb; Qz, relative pronoun;
  319. T-,  preposition.   The  syntactic  tags are presented in tabular form
  320. later in this document.
  321.  
  322.      There is, intentionally, some redundancy in this  coding  system.
  323. With  the exception of "-", any given character in the second position
  324. only occurs with a particular wordclass; a "6", for example, can  only
  325. qualify a noun, an "r" can only qualify an adjective, and so on.  This
  326. makes the programming a bit easier.  There is, obviously, no  mnemonic
  327. significance  to the codes; it is not intended that people should have
  328. to read these codes directly.
  329.  
  330. THE RARITY FLAGS
  331.  
  332.      The third character of the syntactic tag is either  "*",  "%"  or
  333. "$".   This  is  a  marker of word-frequency.  "*" means that the word
  334. occurs in the most frequent 500 words of the LOB Corpus[3], the  Brown
  335. Corpus[5], the Thorndike-Lorge word count[6] and the American Heritage
  336. Word Frequency Book[7], ie it occurs in the most frequent 500  of  all
  337. four lists.
  338.  
  339.      The "$" code means that the word is, in my opinion, rare, with my
  340. opinions  being  combined  to some extent with those of two friends of
  341. mine.   I  realise  that  this  definition  of  rarity  seems   highly
  342. unscientific,  but  there is no appreciably better way of doing it.  I
  343. could perhaps have taken the opinions of many more  people,  but  this
  344. would  have  been  a  long job and I doubt if the resulting list would
  345. have   been   much   different.    The   problem   is   that   today's
  346. computer-readable  corpora,  while  certainly  large enough to provide
  347. data about common words, are nowhere near large enough to provide data
  348. about  rare words.  A word that fails to appear in a corpus of several
  349.  
  350.                                                                 Page 7
  351.  
  352.  
  353. million words is not necessarily rare; conversely, a word that appears
  354. several  times  in  one sample might still be rare in general use.  My
  355. spelling corrector needed to know something  about  the  frequency  of
  356. words  in  its  dictionary  and,  in  the absence of hard data, it was
  357. better for it to have my estimates than none at all.
  358.  
  359.      The third code "%" is by far the commonest in the dictionary  and
  360. denotes words that are neither "*" nor "$".
  361.  
  362.      The rarity codes are  attached  to  tags  rather  than  to  words
  363. because  a  word  can be common in one use but rare in another.  "Go",
  364. for example, is very common as a verb, but less common as a noun.  The
  365. OALDCE  lists  "aneroid" as adjective and noun.  While I am reasonably
  366. familiar with this word in the phrase  "aneroid  barometer",  I  can't
  367. remember ever coming across it as a noun.
  368.  
  369. THE VERB PATTERNS
  370.  
  371.      The final string of letters and numbers, separated by commas,  is
  372. for  verbs  only,  and  shows  the  "verb  patterns"  -  the  sentence
  373. structures - in which the verbs can occur.  If an entry has more  than
  374. one  verb pattern, they are entered in number order and then in letter
  375. order within numbers.   This  (fairly  complicated)  system  is  taken
  376. straight from the OALDCE, and is explained in the book's introduction.
  377.  
  378. THE SYLLABLE COUNTS
  379.  
  380.      The number of syllables was computed for each  word  by  separate
  381. algorithms  applied  to  the  spelling and the pronunciation.  If they
  382. produced the same number, as they did in the great majority of  cases,
  383. this  was  entered in the dictionary.  The remaining three thousand or
  384. so I did by hand.
  385.  
  386.      For the great majority of  words,  the  number  of  syllables  is
  387. obvious.   There  are  a few, however, for which this is not the case.
  388. The problems generally concern the "@" phoneme.
  389.  
  390.      The sounds "I@" ("pier"), "U@" ("tour") and "aI@"  ("hire")  seem
  391. sometimes  to  be  one syllable and sometimes two.  I find that my own
  392. feelings - and those of others I have spoken to -  are  influenced  by
  393. the  spelling  of  the  word.  Whereas I am happy to count "higher" as
  394. having two syllables, I am not so sure about "hire".   Similarly  with
  395. "sear"  (one)  and  "seer" (two).  The sounds that follow the "@" also
  396. seem to have an effect.  While I might be persuaded  that  "fire"  has
  397. two  syllables,  I  would be not happy about "fire-alarm" having four.
  398. Similarly, if "acquire" has three, does "acquiring" have four?
  399.  
  400.      The problem is that the "@" is such a small  part  of  the  sound
  401. that  it  hardly  qualifies  as  a  syllable.  If, on the one hand, it
  402. signifies the presence of a morpheme, its status seems raised and I am
  403. happy  to  accept  it as a syllable.  If, on the other hand, it has no
  404. special status and, furthermore, the adjacent sounds cause  it  almost
  405. to  disappear, then I can't bring myself to call it a syllable at all.
  406. If it is in-between, then I am simply not sure.  Being forced to  make
  407. a  decision,  I  have generally counted "fire/hire/wire/pier/tour" and
  408.  
  409.                                                                 Page 8
  410.  
  411.  
  412. the like as one syllable, but, on another day,  I  might  easily  have
  413. counted them as two.
  414.  
  415.      There is another continuum of "@" sounds in the middle  of  words
  416. like  "labelling".   Some  seem  fairly  clear,  such as "enamelling";
  417. others not so, like "gambling" and "peddling"  (and  are  "gambolling"
  418. and "pedalling" any different?).  I suspect my decisions on these have
  419. been somewhat arbitrary, depending on  whether  a  pronunciation  with
  420. more "@" or less "@" seemed more natural at the time.
  421.  
  422.      One more group  of  problematic  words  are  those  ending  "ion"
  423. pronounced sometimes "I@n" and sometimes "j@n".  I can imagine a vicar
  424. intoning the word "communion" in church so as to give it a  full  four
  425. syllables,  but  then ordering a case of communion wine over the phone
  426. and giving it only three.  "Champion" in "Champion the  Wonder  Horse"
  427. had  three  but  in  "We are the champions" it has two.  Some of these
  428. have only  one  regular  pronunciation  -  "companion",  for  example,
  429. clearly  has  three  syllables  -  but,  for  the others, I suspect my
  430. decisions depended on which pronunciation came  to  mind  when  I  was
  431. considering them.
  432.  
  433. THE ABBREVIATION ENTRIES
  434.  
  435.      Largely because of the paper  by  Geoffrey  Sampson  referred  to
  436. above,  I have included many more abbreviations in the 1992 version of
  437. the dictionary, but I have done so with some reluctance since they  do
  438. not fit easily into the existing scheme.
  439.  
  440.      There were about 50 abbreviations (examples include  "eg",  "ie",
  441. "OAP"  and "TNT") in the previous version, because they were listed in
  442. the main body of the OALDCE.  They were not given any distinctive tags
  443. in  the 1986 version of CUV2.  This was a nuisance since, for example,
  444. any algorithm attempting to match spelling and pronunciation would  be
  445. puzzled  by  an  entry such as "etc" pronounced It'set@r@.  I have now
  446. added about 300 abbreviations that  seemed  to  me  to  be  reasonably
  447. common, and given all abbreviations their own tag.
  448.  
  449.      Some abbreviations, such as  "amp"  and  "rev",  seem  to  behave
  450. pretty  much  like  ordinary  words  and  I  have  not  marked them as
  451. abbreviations.  The rest now have their own tag - "Y".  (The Y tag  in
  452. the  previous  version was used for adverbial particles; these are now
  453. tagged P+.)
  454.  
  455.      Some abbreviations  clearly  have  their  own  pronunciation,  eg
  456. UNESCO,  and  others  clearly  don't,  eg cwt (hundredweight).  I have
  457. given them their own pronunciation when  it  seemed  to  me  that  the
  458. abbreviation  was sometimes pronounced on its own.  For example, I can
  459. imagine someone saying that some event takes place in dZ&n @n feb (Jan
  460. and Feb), but I can't imagine them saying it takes place in mAr @n &pr
  461.                                _
  462. (Mar and Apr), so "Jan" gets dZn whereas "Apr" gets 'eIprIl.  But this
  463. is often pretty arbitrary.
  464.  
  465.      It is not uncommon for two words to share the same  abbreviation,
  466. eg "Dr" for "Doctor" and "Drive" or "St" for "Saint" and "Street".  It
  467. would have been a possibility  to  put  in  two  (or  sometimes  more)
  468.  
  469.                                                                 Page 9
  470.  
  471.  
  472. entries  for such items, along the lines of "convert" (noun and verb),
  473. but I did not feel that 'd0kt@R (or draIv) was  the  pronunciation  of
  474. "Dr"  in  the  way  that 'k0nv3t (or k@n'v3t) was the pronunciation of
  475. "convert", so I was unwilling to give such abbreviations two  or  more
  476. entries,  but  at  the  same  time  I  wanted  to put something in the
  477. pronunciation field, so I just put one of the pronunciations in.
  478.  
  479.      There is also an unsatisfactorily arbitrary quality  to  some  of
  480. the  tags.   Abbreviations  that can go after an article or possessive
  481. ("my PhD", "an FRS", "the MCC") were tagged singular noun ("Y>"),  and
  482. a  few  can  be  plural  ("GCSEs")  ("Y)").   Some,  mostly  units  of
  483. measurement ("cc", "rpm"),  can  be  both  ("Y]").   Uncountable  noun
  484. abbreviations  ("LSD",  "TB") get "Y}".  Titles ("Mr", "Col") get "Y:"
  485. while proper names ("Mon", "Aug") or abbreviations likely to form part
  486. of  a  proper name ("Ave", "Rd") get "Y=".  Others ("asap", "viz") get
  487. "Y~".  Oddly, some organization names seem to be proper names ("RADA",
  488. "UNESCO") while others don't ("the BBC", "the UN").
  489.  
  490.      In short, then, I am uneasy about many of the  decisions  I  have
  491. had  to  make in order to get these abbreviation entries into the same
  492. form as the rest of the dictionary, but the important  thing  is  that
  493. they  are  now  in  the  dictionary,  so a piece of software using the
  494. dictionary will recognize them, and they are distinctively tagged  for
  495. anyone who wants to take them out.
  496.  
  497. ACKNOWLEDGEMENTS
  498.  
  499.      Most of the work of extracting the required information from  the
  500. machine-readable  OALDCE,  putting  it into a standard form in CUVOALD
  501. and generating CUV2 was carried out by me  between  January  1985  and
  502. March  1986.  I added the rarity flags in 1988 and the syllable counts
  503. in 1990 and inserted the new entries in  March-June 1992.  Susan  Drew
  504. keyed  in  the pronunciations of some of the entries, and the file was
  505. proofread by Philip Baker,  Sylvia Davidson,  Ann Jones,  Ed Hastings,
  506. Kate Murray  and  Diana Whitaker.   Deepa  Dougal,  as part of her MSc
  507. project, carried out the task of looking up all the words from the LOB
  508. Corpus in CUV2.
  509.  
  510. COPYRIGHT
  511.  
  512.      I am making the file available to others,  via  the  Oxford  Text
  513. Archive,   so   that   researchers   who   need   a  reasonably  large
  514. computer-usable dictionary do not need to  spend  months,  as  I  did,
  515. putting one together.  Anyone contemplating commercial use of the file
  516. should contact the Oxford University Press.
  517.  
  518. REFERENCES
  519.  
  520. [1] Hornby A.S., Oxford Advanced Learner's Dictionary of
  521.     Current English, Third Edition, Oxford University
  522.     Press, 1974
  523.  
  524. [2] Wells J.W., "A standardised machine-readable phonetic
  525.     notation", IEE conference "Speech input/output:
  526.     techniques and applications" London, Easter 1986
  527.  
  528.                                                                Page 10
  529.  
  530.  
  531.  
  532. [3] Hofland K, and S. Johansson, Word Frequencies in British
  533.     and American English, Norwegian Computing Centre for the
  534.     Humanities/ Longman, 1982
  535.  
  536. [4] Sampson G., "How fully does a machine-usable dictionary
  537.     cover English text?" Literary and Linguistic Computing,
  538.     Vol 4, No 1, 1989, pp 29-35
  539.  
  540. [5] Kucera H. and W.N. Francis, Computational Analysis of
  541.     Present-day American English, Brown University Press,
  542.     1967
  543.  
  544. [6] Thorndike E.L. and I. Lorge, The Teacher's Word Book of
  545.     30,000 Words, Teachers College, Columbia University,
  546.     1944
  547.  
  548. [7] Carroll J.B., P. Davies and B. Richman, Word Frequency
  549.     Book, American Heritage, 1971
  550.  
  551.                                                                Page 11
  552.  
  553.  
  554.  
  555. SYNTACTIC TAGS
  556.  
  557.           FIRST CHARACTER            SECOND CHARACTER
  558.  
  559. VERBS:    G   Anomalous              0   inflects like "work"
  560.           H   Transitive             1                 "wish"
  561.           I   Intransitive           2                 "love"
  562.           J   Trans & Intrans        3                "apply"
  563.                                      4                 "abet"
  564.                                      5    irregular
  565.  
  566.                                      a   3rd pers sing pres tense
  567.                                      b   present participle (-ing)
  568.                                      c   past tense
  569.                                      d   past participle
  570.                                      e   other part of verb
  571.                                      f   contraction pronoun+anom vb
  572.                                      g   contraction anom vb+not
  573.                                      h   contraction anom vb, other
  574.  
  575. NOUNS:    K   Countable              6   plural like "cat"
  576.           L   Uncountable            7               "fox"
  577.           M   C & U                  8              "pony"
  578.           N   Proper noun            9   pl same as sg, like "salmon"
  579.                                      @   no plural
  580.  
  581.                                      i   sing form
  582.                                      j   plural form
  583.                                      k   pl but acts sg, like "economics"
  584.                                      l   proper, forename eg "Sandra"
  585.                                      m   proper, country etc, eg "Scotland"
  586.                                      n   proper, town eg "Scunthorpe"
  587.                                      o   other, eg "Saturn"
  588.  
  589. ADJS:    O                           A   no -er or -est form
  590.                                      B   +r, +st  like "subtle"
  591.                                      C   +er, +est  like "light"
  592.                                      D   y to ier, iest  like "heavy"
  593.                                      E   irregular comp &/or sup
  594.  
  595.                                      p   predicative
  596.                                      q   attributive
  597.                                      r   comparative form
  598.                                      s   superlative form
  599.                                      t   can be attached by hyphen eg "bellied"
  600.  
  601. OTHER:   P   Adverb                  u   not interrog or relative
  602.                                      v   interrogative
  603.                                      w   relative
  604.                                      +   adverbial particle
  605.  
  606.          Q   Pronoun                 x   not interrog or relative
  607.                                      y   interrogative
  608.                                      z   relative
  609.  
  610.                                                                Page 12
  611.  
  612.  
  613.  
  614.          R   Definite article        -
  615.          S   Indefinite article      -
  616.          T   Preposition             -
  617.          U   Prefix                  -
  618.          V   Conjunction             -
  619.          W   Interjection            -
  620.          X   Particle                -
  621.          Y   Abbreviation            >   sing noun
  622.                                      )   plur noun
  623.                                      ]   both sing and plur
  624.                                      }   uncountable noun
  625.                                      :   title
  626.                                      =   proper noun
  627.                                      ~   other abbreviation
  628.          Z   Not classified          -
  629.  
  630.                                                                Page 13
  631.  
  632.  
  633.  
  634. Samples from CUV2
  635. First 50 lines, then 10 lines every 10000, then the last 50.
  636.  
  637.  
  638. Line     1
  639. 'em                    @m                     Qx$                    1                                                          
  640. 'neath                 niT                    T-$                    1                                                          
  641. 'shun                  SVn                    W-$                    1                                                          
  642. 'twas                  tw0z                   Gf$                    1                                                          
  643. 'tween                 twin                   Pu$,T-$                1                                                          
  644. 'tween-decks           'twin-deks             Pu$                    2                                                          
  645. 'twere                 tw3R                   Gf$                    1                                                          
  646. 'twill                 twIl                   Gf$                    1                                                          
  647. 'twixt                 twIkst                 T-$                    1                                                          
  648. 'twould                twUd                   Gf$                    1                                                          
  649. 'un                    @n                     Qx$                    1                                                          
  650. A                      eI                     Ki$                    1                                                          
  651. A's                    eIz                    Kj$                    1                                                          
  652. A-bomb                 'eI-b0m                K6$                    2                                                          
  653. A-bombs                'eI-b0mz               Kj$                    2                                                          
  654. A-level                'eI-levl               K6%                    3                                                          
  655. A-levels               'eI-levlz              Kj%                    3                                                          
  656. AA                     ,eI'eI                 Y>%                    2                                                          
  657. ABC                    ,eI,bi'si              Y>%                    3                                                          
  658. ABCs                   ,eI,bi'siz             Y)$                    3                                                          
  659. AD                     ,eI'di                 Y~%                    2                                                          
  660. AGM                    ,eIdZI'em              Y>%                    2                                                          
  661. AIDS                   eIdz                   Y}%                    1                                                          
  662. AWOL                   'eIw0l                 Y~%                    2                                                          
  663. Aachen                 'Ak@n                  Nn$                    2                                                          
  664. Aarhus                 'Ahus                  Nn$                    2                                                          
  665. Abe                    eIb                    Nl$                    1                                                          
  666. Abercarn               '&b@kAn                Nn$                    3                                                          
  667. Aberdare               ,&b@'de@R              Nn$                    3                                                          
  668. Aberdeen               ,&b@'din               Nn%                    3                                                          
  669. Abergavenny            ,&b@g@'venI            Nn%                    5                                                          
  670. Abergele               ,&b@'gelI              Nn$                    4                                                          
  671. Abertillery            ,&b@tI'le@rI           Nn%                    5                                                          
  672. Aberystwyth            ,&b@'rIstwIT           Nn%                    4                                                          
  673. Abingdon               '&bINd@n               Nn%                    3                                                          
  674. Abo                    '&b@U                  K6$                    2                                                          
  675. Aborigine              ,&b@'rIdZ@nI           K6%                    5                                                          
  676. Aborigines             ,&b@'rIdZ@nIz          Kj%                    5                                                          
  677. Abos                   '&b@Uz                 Kj$                    2                                                          
  678. Abraham                'eIbr@h&m              Nl%                    3                                                          
  679. Accra                  @'krA                  Nn%                    2                                                          
  680. Accrington             '&krINt@n              Nn%                    3                                                          
  681. Achilles               @'kIliz                Nl%                    3                                                          
  682. Ada                    'eId@                  Nl%                    2                                                          
  683. Adam                   '&d@m                  Nl%                    2                                                          
  684. Addis Ababa            ,&dIs '&b@b@           Nn%                    5                                                          
  685. Addressograph          @'dres@UgrAf           K6$                    4                                                          
  686. Addressographs         @'dres@UgrAfs          Kj$                    4                                                          
  687. Adelaide               '&d@leId               Nn%                    3                                                          
  688.  
  689.                                                                Page 14
  690.  
  691.  
  692. Adrian                 'eIdrI@n               Nl%                    3                                                          
  693.  
  694. Line 10001
  695. boggling               'b0glIN                Ib%                    22A,3A                                                     
  696. boggy                  'b0gI                  OD%                    2                                                          
  697. bogie                  'b@UgI                 K6$                    2                                                          
  698. bogies                 'b@UgIz                Kj$                    2                                                          
  699. bogs                   b0gz                   Ja%,Kj%                12E,15B                                                    
  700. bogus                  'b@Ug@s                OA%                    2                                                          
  701. bogy                   'b@UgI                 K8$                    2                                                          
  702. boh                    b@U                    W-%                    1                                                          
  703. bohemian               b@U'himI@n             K6%,OA%                4                                                          
  704. bohemians              b@U'himI@nz            Kj%                    4                                                          
  705.  
  706. Line 20001
  707. dins                   dInz                   Ja$                    12C                                                        
  708. dint                   dInt                   K6%                    1                                                          
  709. dints                  dInts                  Kj$                    1                                                          
  710. diocesan               daI'0sIsn              K6$,OA%                4                                                          
  711. diocesans              daI'0sIsnz             Kj$                    4                                                          
  712. diocese                'daI@sIs               K6%                    3                                                          
  713. dioceses               'daI@sIsIz             Kj$                    4                                                          
  714. dioxide                daI'0ksaId             K6%                    3                                                          
  715. dioxides               daI'0ksaIdz            Kj%                    3                                                          
  716. dip                    dIp                    J4%,M6%                12A,2C,3A,6A,14                                            
  717.  
  718. Line 30001
  719. half-tracks            'hAf-tr&ks             Kj$                    2                                                          
  720. half-truth             'hAf-truT              K6%                    2                                                          
  721. half-truths            'hAf-truDz             Kj%                    2                                                          
  722. half-volley            hAf-'v0lI              K6%                    3                                                          
  723. half-volleys           hAf-'v0lIz             Kj%                    3                                                          
  724. half-yearly            hAf-'j3lI              OA%,Pu%                3                                                          
  725. halfback               'hAfb&k                K6%                    2                                                          
  726. halfbacks              'hAfb&ks               Kj%                    2                                                          
  727. halfpennies            'heIpnIz               Kj%                    2                                                          
  728. halfpenny              'heIpnI                K8%                    2                                                          
  729.  
  730. Line 40001
  731. misdealt               ,mIs'delt              Jc$,Jd$                22A,6A                                                     
  732. misdeed                ,mIs'did               K6%                    2                                                          
  733. misdeeds               ,mIs'didz              Kj%                    2                                                          
  734. misdemeanour           ,mIsdI'min@R           K6%                    4                                                          
  735. misdemeanours          ,mIsdI'min@z           Kj%                    4                                                          
  736. misdirect              ,mIsdI'rekt            H0%                    36A                                                        
  737. misdirected            ,mIsdI'rektId          Hc%,Hd%                46A                                                        
  738. misdirecting           ,mIsdI'rektIN          Hb%                    46A                                                        
  739. misdirection           ,mIsdI'rekSn           K6$                    4                                                          
  740. misdirections          ,mIsdI'rekSnz          Kj$                    4                                                          
  741.  
  742. Line 50001
  743. question-master        'kwestS@n-mAst@R       K6%                    4                                                          
  744. question-masters       'kwestS@n-mAst@z       Kj%                    4                                                          
  745. questionable           'kwestS@n@bl           OA%                    4                                                          
  746. questionably           'kwestS@n@blI          Pu%                    4                                                          
  747.  
  748.                                                                Page 15
  749.  
  750.  
  751. questioned             'kwestS@nd             Hc%,Hd%                26A,10                                                     
  752. questioner             'kwestS@n@R            K6%                    3                                                          
  753. questioners            'kwestS@n@z            Kj%                    3                                                          
  754. questioning            'kwestS@nIN            Hb%                    36A,10                                                     
  755. questioningly          'kwestS@nINlI          Pu%                    4                                                          
  756. questionnaire          ,kwestS@'ne@R          K6%                    3                                                          
  757.  
  758. Line 60001
  759. statuesque             ,st&tSU'esk            OA%                    3                                                          
  760. statuette              ,st&tSU'et             K6%                    3                                                          
  761. statuettes             ,st&tSU'ets            Kj%                    3                                                          
  762. stature                'st&tS@R               L@%                    2                                                          
  763. status                 'steIt@s               L@%                    2                                                          
  764. status quo             ,steIt@s 'kw@U         Ki%                    3                                                          
  765. statute                'st&tSut               K6%                    2                                                          
  766. statute-book           'st&tSut-bUk           K6%                    3                                                          
  767. statute-books          'st&tSut-bUks          Kj$                    3                                                          
  768. statutes               'st&tSuts              Kj%                    2                                                          
  769.  
  770. Line 70001
  771. wolfram                'wUlfr@m               L@$                    2                                                          
  772. wolfs                  wUlfs                  Ha%                    16A,15A                                                    
  773. wolves                 wUlvz                  Kj%                    1                                                          
  774. woman                  'wUm@n                 Ki*                    2                                                          
  775. womanhood              'wUm@nhUd              L@%                    3                                                          
  776. womanish               'wUm@nIS               OA%                    3                                                          
  777. womanize               'wUm@naIz              I2%                    3                                                          
  778. womanized              'wUm@naIzd             Ic%,Id%                3                                                          
  779. womanizer              'wUm@naIz@R            K6%                    4                                                          
  780. womanizers             'wUm@naIz@z            Kj%                    4                                                          
  781.  
  782. Line 70597
  783. zest                   zest                   L@%                    1                                                          
  784. zestful                'zestf@l               OA%                    2                                                          
  785. zestfully              'zestf@lI              Pu%                    3                                                          
  786. zigzag                 'zIgz&g                I4%,K6%,Pu%            2                                                          
  787. zigzagged              'zIgz&gd               Ic%,Id%                2                                                          
  788. zigzagging             'zIgz&gIN              Ib%                    3                                                          
  789. zigzags                'zIgz&gz               Ia%,Kj%                2                                                          
  790. zinc                   zINk                   L@%                    1                                                          
  791. zing                   zIN                    L@%                    1                                                          
  792. zinnia                 'zInI@                 K6$                    3                                                          
  793. zinnias                'zInI@z                Kj$                    3                                                          
  794. zip                    zIp                    H4%,K6%                16A,15B,22                                                 
  795. zip code               'zIp k@Ud              K6%                    2                                                          
  796. zip codes              'zIp k@Udz             Kj%                    2                                                          
  797. zip-fastener           'zIp-f&sn@R            K6%                    3                                                          
  798. zip-fasteners          'zIp-f&sn@z            Kj%                    3                                                          
  799. zipped                 zIpt                   Hc%,Hd%                16A,15B,22                                                 
  800. zipper                 'zIp@R                 K6%                    2                                                          
  801. zippers                'zIp@z                 Kj%                    2                                                          
  802. zipping                'zIpIN                 Hb%                    26A,15B,22                                                 
  803. zips                   zIps                   Ha%,Kj%                16A,15B,22                                                 
  804. zither                 'zID@R                 K6%                    2                                                          
  805. zithers                'zID@z                 Kj%                    2                                                          
  806.  
  807.                                                                Page 16
  808.  
  809.  
  810. zloty                  'zl0tI                 K6$                    2                                                          
  811. zlotys                 'zl0tIz                Kj$                    2                                                          
  812. zodiac                 'z@UdI&k               K6%                    3                                                          
  813. zodiacs                'z@UdI&ks              Kj$                    3                                                          
  814. zombie                 'z0mbI                 K6%                    2                                                          
  815. zombies                'z0mbIz                Kj%                    2                                                          
  816. zonal                  'z@Unl                 OA%                    2                                                          
  817. zone                   z@Un                   H2%,K6%                16A                                                        
  818. zoned                  z@Und                  Hc%,Hd%                16A                                                        
  819. zones                  z@Unz                  Ha%,Kj%                16A                                                        
  820. zoning                 'z@UnIN                Hb%,L@%                26A                                                        
  821. zoo                    zu                     K6%                    1                                                          
  822. zoological             ,zu@'l0dZIkl           OA%                    5                                                          
  823. zoologist              zu'0l@dZIst            K6%                    4                                                          
  824. zoologists             zu'0l@dZIsts           Kj%                    4                                                          
  825. zoology                zu'0l@dZI              L@%                    4                                                          
  826. zoom                   zum                    I0%,L@%                12A,2C                                                     
  827. zoomed                 zumd                   Ic%,Id%                12A,2C                                                     
  828. zooming                'zumIN                 Ib%                    22A,2C                                                     
  829. zooms                  zumz                   Ia%                    12A,2C                                                     
  830. zoophyte               'z@U@faIt              K6$                    3                                                          
  831. zoophytes              'z@U@faIts             Kj$                    3                                                          
  832. zoos                   zuz                    Kj%                    1                                                          
  833. zoot suit              'zut sut               K6$                    2                                                          
  834. zoot suits             'zut suts              Kj$                    2                                                          
  835. zucchini               zU'kinI                M9%                    3                                                          
  836. zucchinis              zU'kinIz               Kj$                    3                                                          
  837.  
  838. End of input file after line  70646.
  839.