a, A a aardvark AB abacus abalone abandon abandoned abate abbey abbreviate abbreviation abdicate abdomen abduct abide ability able -able abnormal aboard abolish abolition abolitionist abominable aborigine abound about above aboveboard abreast abridge abroad abrupt abscess absence absent absentee absent-minded absolute absolutely absorb absorbent absorption abstain abstract absurd abundance abundant abuse abyss acacia academy accelerate acceleration accent accept acceptable acceptance access accessory accident accidental acclaim accommodate accommodation accompaniment accompany accomplice accomplish accomplishment accord accordance according accordion account accountant accumulate accumulation accuracy accurate accusation accuse accustom accustomed ace ache achieve achievement acid acid rain acknowledge acknowledgment acne acorn acquaint acquaintance acquire acquit acre acreage acrobat across act action action verb activate active activity actor actress actual actually acupuncture acute acute angle ad A.D. adage adapt add addend adder addict addiction addition additional additive address adenoids adept adequate adhere adhesive adios adjacent adjective adjoin adjourn adjust adjustment ad-lib administer administration admirable admiral admiration admire admission admit admittance adobe adolescent adopt adoption adorable adore adorn adrift adult adulthood advance advanced advancement advantage advantageous adventure adventurous adverb adversary adverse adversity advertise advertisement advice advisable advise adviser advocate adz aerial aerobics aeronautics aerosol aerospace aesthetic afar affable affair affect¹ affect² affection affectionate affiliate affirm affirmative affix afflict affliction affluent afford affront Afghanistan afire afloat afoot afraid Africa African African violet Afro Afro-American aft after afternoon afterward or afterwards again against agate age aged agency agent aggravate aggression aggressive aghast agile agility aging agitate aglow ago agony agree agreeable agreement agricultural agriculture ah aha ahead ahoy aid aide ail ailment aim aimless ain’t air air conditioner aircraft airfield air force airline airliner airmail airman airplane airport air pressure airship airsick airstrip airtight airy aisle ajar AK akimbo akin AL Ala. Alabama alabaster alarm alarm clock alas Alas. Alaska Albania albatross Alberta albino album alcohol alcoholic alcoholism alcove alder ale alert Aleut alfalfa algae algebra Algeria alias alibi alien alight¹ alight² align alike alimentary canal alive all Allah all-around allege allegiance allergic allergy alley alliance allied alligator alliteration allot allow allowance alloy all right allude ally almanac almond almost aloft aloha alone along alongside aloof aloud alpaca alphabet alphabetical alphabetize already also Alta. altar alter alternate alternating current alternative although altimeter altitude alto altogether aluminum always am a.m. or A.M. amateur amaze amazement ambassador amber ambiguous ambition ambitious amble ambulance ambush ameba amen amend amendment amends Amer. America American American English American Revolution amethyst amiable amid or amidst amigo amiss ammonia ammunition amnesia amoeba among amount amphibian amphibious amphitheater ample amplify amputate amt. amuse amusement amusement park an anaconda analysis analyze anarchy anatomy ancestor anchor anchovy ancient and andiron android anecdote anemia anemometer anemone anesthesia anesthetic anew angel anger angle Angola angora angry anguish animal animosity ankle anklet annex annihilate anniversary announce announcement announcer annoy annoyance annual annual ring anoint anonymous another answer ant antagonism antagonize antarctic Antarctica Antarctic Ocean anteater antecedent antelope antenna anthem anther anthill anthology anthracite anthropology anti- antibiotic antibody anticipate anticipation antidote antifreeze antique antiseptic antitoxin antler antonym anvil anxiety anxious any anybody anyhow anymore anyone anyplace anything anytime anyway anywhere aorta Apache apart apartheid apartment apathy ape aphid apiece apologize apology Apostle apostrophe apothecary appall apparatus apparel apparent apparently appeal appear appearance appease appendicitis appendix appetite appetizing applaud applause apple applesauce appliance applicant application apply appoint appointment appraise appreciate appreciation apprehend apprehension apprentice approach appropriate approval approve approximate approximately Apr. apricot April apron apt aptitude aqualung aquarium aqueduct AR Arab Arabia Arabian Arabic Arabic numerals arable arbitrary arbitrate arbitration arbor arc arcade arch archaeology archbishop archeology archer archery archipelago architect architecture arctic Arctic Ocean are area area code arena aren’t Argentina argue argument arid arise aristocracy aristocrat arithmetic Ariz. Arizona ark Ark. Arkansas arm¹ arm² armada armadillo armaments armchair armed forces armistice armor armored armory armpit army aroma arose around arouse arrange arrangement array arrest arrival arrive arrogant arrow arrowhead arroyo arsenal arsenic arson art artery arthritis artichoke article articulate artificial artificial respiration artillery artisan artist artistic as asbestos ascend ascent ascertain ash¹ ash² ashamed ashore Asia Asian aside ask askew asleep asparagus aspect aspen asphalt aspire aspirin ass assassin assassinate assault assemble assembly assembly line assent assert assess asset assign assignment assist assistance assistant associate association associative property assortment assume assumption assurance assure aster asterisk astern asteroid asthma astir astonish astonishment astound astray astride astrology astronaut astronomer astronomical astronomy asylum at ate atheist athlete athlete’s foot athletic athletics Atlantic atlas atmosphere atmospheric atoll atom atomic atomic bomb atomic energy atone atop atrocious attach attachment attack attain attempt attend attendance attendant attention attentive attest attic attire attitude attorney attract attraction attractive attribute auction audible audience audio audition auditorium auditory Aug. auger augment August auk aunt auricle aurora borealis Australia Australian Austria authentic author authoritative authority authorize auto autobiography autograph automatic automation automobile autopsy autumn auxiliary auxiliary verb available avalanche Ave. avenue average avert aviation aviator avid avocado avoid await awake awaken award aware away awe awesome awful awfully awhile awkward awl awning awoke ax axis axle aye AZ azalea Aztec azure