apple page customize dictionary

copied from: http://discussions.apple.com/thread.jspa?threadID=531999

I've converted the all.dic from Medic.zip in the format you need with Pages. A quick test showed that it works.

If you send me your e-mail address, I'll send you the new dictionary file. Click on my name above the atavar and use the e-mail address in the Biography field.

You then only need to join your ~/Library/Spelling/en with the new medic.en:

* Either open both en and medic.en in TextEdit and copy medic.en to the en window, then save the file
Or, if you're familiar with Terminal.all, you could cd to ~/Library/Spelling and use this command:

cat ~/Desktop/medic.en >> en

(I assume that you unzipped the file to your desktop)
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If you want to change all.dic by yourself, then you have to replace the line endings with a special character from the en file. The character looks like "^@" but is in fact one character. In the resulting file, the words are all in one line separated by the special character. TextEdit doesn't show this character, so to change all.dic you should use something like emacs that comes with Mac OS X. You can launch emacs in Terminal.app.