verb (used without object)
  1. to make a loud, harsh noise: The gears of the old car clashed and grated.
  2. to come together or collide, especially noisily: The cymbals clashed.
  3. to conflict; disagree: Their stories of the accident clashed completely.
  4. (of juxtaposed colors) to be offensive to the eye.
  5. to engage in a physical conflict or contest, as in a game or a battle (often followed by with): The Yankees clash with the White Sox for the final game of the season.
verb (used with object)
  1. to strike with a resounding or violent collision: He clashed his fist against the heavy door.
  2. to produce (sound) by or as by collision: The tower bell clashed its mournful note.
  1. a loud, harsh noise, as of a collision: The automobiles collided with a terrible clash.
  2. a collision, especially a noisy one.
  3. a conflict; opposition, especially of views or interests: a clash between nations.
  4. a battle, fight, or skirmish: The clash between the border patrols left three men dead.

Origin of clash

1490–1500; blend of clap1 and dash1
Related formsclash·er, nounclash·ing·ly, adverbin·ter·clash, noun, verbun·clash·ing, adjective

Synonyms for clash

Antonyms for clash Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for clasher


  1. to make or cause to make a loud harsh sound, esp by striking together
  2. (intr) to be incompatible; conflict
  3. (intr) to engage together in conflict or contest
  4. (intr) (of dates or events) to coincide
  5. (intr) (of colours) to look ugly or inharmonious together
  1. a loud harsh noise
  2. a collision or conflict
  3. Scot gossip; tattle
Derived Formsclasher, nounclashingly, adverb

Word Origin for clash

C16: of imitative origin
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 clasher



c.1500, "to make a loud, sharp sound," of imitative origin, or a blend of clap and crash. Cf. Dutch kletsen "splash, clash," German klatschen, Danish klaske "clash, knock about." Figurative sense, in reference to non-physical strife or battle, is first attested 1620s. Of things, "to come into collision," from 1650s; of colors, "to go badly together," first recorded 1894. Related: Clashed; clashing.



1510s, "sharp, loud noise of collision," from clash (v.). Especially of the noise of conflicting metal weapons. Meaning "hostile encounter" is from 1640s; meaning "conflict of opinions, etc." is from 1781.

Online Etymology Dictionary, © 2010 Douglas Harper