Lion (LEO dictionary) - Translate words on your screen with a single mouse click!
wenlin - Wenlin Software for Learning Chinese
PONS - Germany’s most-trusted foreign-language dictionary. Includes language-learning materials, definitions, examples, pronunciation tips and a vocabulary trainer.
Pleco - The #1 Chinese dictionary app for iOS and Android
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Youdao Dictionary - Youdao is a search engine released by Chinese internet leviathan, NetEase in 2007.