How to stop Dictionary Trainer on Mac OS X. 1. Open /home/library/Preferences/ com.appple.JapaneseAnalysis / DictionaryTrainer / Trainer.dict with koetori register words. 2. import file into any user specified dictionary. 3. delete processedMail file on /home/library/Preferences/ com.appple.JapaneseAnalysis / DictionaryTrainer / 4. Restart your mac and Done