English Dictionary - Offline lets you improve your English vocabulary and grammar. The program provides more than 172,000 words, more than 180,000 senses, and 49,000 sample sentences. In addition, the application includes the "Hang On, man" game, a flash card system to facilitate learning new words, several articles about English grammar, and quality sounds for phrases and words.
One World Dictionary by Ascendo is a leading multilingual reference tool for Apple desktops.
InstantTranslate makes it really easy to translate a selection of text in the application you are working in from one language to another language.
