Yazi is a dictionary program designed to assist users in their study and understanding of different Asian languages. It has both a browse-able dictionary, and a lookup window where characters can dynamically be looked up using OS X services.
The program features: dictionary of most Chinese characters from Unicode with Chinese (Mandarin & Cantonese), Japanese, Korean and Vietnamese pronunciations; dictionary of Chinese words from CEDict; unicode/HTML conversion services and much more.
InstantTranslate makes it really easy to translate a selection of text in the application you are working in from one language to another language.
One World Dictionary by Ascendo is a leading multilingual reference tool for Apple desktops.
