/ Thesaurus / T Synonyms of thin out Find synonyms for: Verb1. thin out, reduce, cut down, cut back, trim, trim down, trim back, cut, bring downusage: make sparse; "thin out the young plants"2. thin out, decrease, diminish, lessen, fallusage: become sparser; "Towards the end of town, the houses thinned out"3. dilute, thin, thin out, reduce, cut, weakenusage: lessen the strength or flavor of a solution or mixture; "cut bourbon"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language