The American heritage thesaurus for learners of English

the long version

This reference contains more than 6,000 synonyms that have been carefully chosen for their usefulness to students of English, both intermediate and advanced. Every synonym has a short, clear definition that helps distinguish it from other synonyms in its group and its own example sentence showing proper usage and clarifying shades of meaning. A useful appendix includes thematic word groups, a list of frequently misspelled words, irregular verbs, and information on common idioms, sound-alikes, and other areas of difficulty for English learners.