The Merriam-Webster thesaurus

An all-purpose thesaurus at an attractive price. More than 157,000 synonyms, antonyms, related and contrasted words, and idioms. Alphabetically organized for ease of use. Brief definitions describe shared meanings.

Find the right word to say exactly what you mean. This essential reference contains more than 100,000 synonyms, antonyms, related and contrasted words, and idiomatic phrases. Entries are arranged in a single, sensible alphabetical list--so you can find the word you want without struggling through complicated indexes.