REVERSE DICTIONARY: Describe a Concept, Get a Word

REVERSE DICTIONARY: Describe a Concept, Get a Word

Reverse dictionary lets you describe a concept and get back a list of words and phrases related to that concept. Your description can be a few words, a sentence, a question, or even just a single word. In most cases you'll get back a list of related terms with the best matches shown first.

http://www.onelook.com/reverse-dictionary.shtml