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    Adding a new word to the en-US dictionary

    Occasionally bugs are filed pointing out situations where perfectly legitimate words are missing from the English spell check dictionary in Firefox. This article describes the process for adding a word to the dictionary.

    The process is pretty straight-forward:

    1. Get a clone of mozilla-central, if you don't already have one, and make sure you can build it successfully.
    2. Get into the dictionary sources directory using this command: cd extensions/spellcheck/locales/en-US/hunspell/dictionary-sources
    3. There's a special script used for editing dictionaries. The script only works if you have the environment variable EDITOR set to the executable of an editor program; if you don't have it set, you can do EDITOR=vim sh edit-dictionary to edit using vim (or you can substitute some other editor), or you can just do sh edit-dictionary if you have an EDITOR already specified.
    4. Add and remove words in the dictionary file, then quit the editor.
    5. sh merge-dictionaries to process the dictionary changes you've made.
    6. Move the revised dictionary file into position: mv en-US.dic ..
    7. Build Firefox and test your updated dictionary. Once you're satisfied, create a patch as usual, attach it to a bug, and request review.

    Document Tags and Contributors

    Contributors to this page: Sheppy, fscholz, Ehsan
    Last updated by: fscholz,