/usr/share/dict/words is just not enough. Sometimes, you need more words, maybe in another language. Fortunately, you can always inflate the dic/aff file pairs from Firefox/Thunderbird/OpenOffice/LibreOffice spellcheckers into plain wordlists. There is a poorly documented
unmunch utility from the hunspell package that does the trick:
$ pwd /Applications/Firefox.app/Contents/MacOS/dictionaries $ ls en-US.aff en-US.dic $ wc en-US.dic 57438 57438 624100 en-US.dic $ unmunch en-US.dic en-US.aff 2>/dev/null 1|sort -u|wc 136734 136734 1302152
You can find dic/aff pairs for almost any language on the OpenOffice.org 2.x Dictionaries page.