• synonyms


Feeling Left Out: Idioms That Hurt LeftiesRead more in this article about some frequently asked questions and fun facts related to our definitions.


huddle, exchange, interact, visit, confer, negotiate, contact, consult, interview, argue, consider, bicker, contest, deliberate, question, wrangle, oppose, answer, review, debate

Nearby words

thrale, hester lynch, thrall, thralldom, thrang, thrapple, thrash, thrash about, thrash metal, thrash out, thrasher, thrashing

Origin of thrash

before 900; Middle English thrasshen, variant of thresshen to thresh
1 maul, drub.
Related formsun·thrashed, adjectivewell-thrashed, adjective
Can be confusedthrash thresh

Synonym study

1. See beat. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for thrash out (1 of 2)

thrash out


(tr, adverb) to discuss fully or vehemently, esp in order to come to a solution or agreement

British Dictionary definitions for thrash out (2 of 2)


/ (θræʃ) /



the act of thrashing; blow; beating
informal a party or similar social gathering
See also thrash out

Word Origin for thrash

Old English threscan; related to Old High German dreskan, Old Norse thriskja
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for thrash out



1580s, "to separate grains from wheat, etc., by beating," dialectal variant of threshen (see thresh). Sense of "beat (someone) with (or as if with) a flail" is first recorded c.1600. Meaning "to make wild movements like those of a flail or whip" is attested from 1846. Related: Thrashed; thrashing. Type of fast heavy metal music first called by this name 1982.

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with thrash out

thrash out

Discuss fully, especially to resolve a problem, as in We'll just have to thrash out our ideas about where to go on vacation. [Late 1800s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.