Contains 183,500 British and American words, phrases, and meanings, as well as 85,000 examples showing how words are used. It includes over 2,000 words and meanings from British and American English, such as offshoring, life coach, sex up, wi-fi.
Jennifer Bradbery Books
A synonyms dictionary written especially for learners. It groups words with similar meanings and explains the differences between them.
Oxford Learner's Thesaurus
A Dictionary of Synonyms; Wörterbuch Mit CD-ROM