iSlovnik is a comprehensive bidirectional English-Czech dictionary featuring dependable database of more than 350 thousand translation pairs. This utility is rich in phrases and technical terms. You may integrate it into the Services menu. It is completely self-contained, no Internet connection being required.
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.
