Oxford Dictionary & Thesaurus
MobiSystems
英汉字典 / 英英字典 / 汉英字典
Erudite
Dictionary.com: English Words
Dictionary.com, LLC
英英字典及翻译器 English Dictionary
Bravolol - Language Learning
The English Dictionary
StudySwitch, Inc.
英汉字典 | 汉英字典 English Dictionary
剑桥词典 +Plus
Cambridge University Press & Assessment
Dictionary - Merriam-Webster
Merriam-Webster Inc.
English Dictionary - Offline
Livio
Oxford Advanced Learner's Dict
Oxford University Press ELT.