n. 1 crash, clang, clank, clangour The concerto ends with a clash of cymbals 2 collision, smash, (hostile) encounter, conflict, engagement, fight, battle, disagreement, difference, argument, dispute, altercation, quarrel, squabble He has witnessed many a clash between the prime minister and parliament
v. 3 conflict, fight, battle, disagree, differ, argue, dispute, quarrel, squabble, feud, wrangle, cross swords My brother and I always clash on the question of who should pay our father's hospital bills 4 conflict, disharmonize, jar, be at odds or out of keeping The pink of the blouse and the fuchsia of the skirt clash badly