The spell-checker has a main dictionary with many common words, and can remember new words in a personal dictionary, so that special words such as acronyms, abbreviations and specialist terminology can be stored and used to extend the main dictionary.
During a spell check, when you select the Add button, the current word is entered into your own personalized dictionary. All subsequent occurrences of the word will be treated as if the word were part of the standard dictionary.
By default, all the words are added in a document called user.lex. You can select alternative personal dictionaries to use instead - see Spell-checker and thesaurus options.
You can edit the user dictionary by opening it with Write. Select the Open command from the File menu and pick the dictionary from the file list. You may need to select Other Files (*.*) from the List Files Of Type drop-down list to be able to do this. Remove or edit any words and select the Save command from the File menu to finish editing your dictionary.
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