GoldenDict - The program has the following features: Use of WebKit for an accurate articles' representation, complete with all formatting, colors, images and links.
Glosbe - Huge collaborative massively multilingual dictionary.
NextDict Dictionary - NextDict is a multi-language dictionary and a collection of the most complete English references...
Wordnik - the biggest online English dictionary, by number of words
Dictionary.com - Dictionary.com is the world’s leading digital dictionary. We provide millions of English definitions, spellings, audio pronunciations, example sentences, and word origins.
VerbAce - VerbAce-Pro is an easy-to-use Desktop Translation Software. Translate in a mouse click