jar

1 a forceful coming together of two things this padded case should protect your laptop from the jars normally experienced while traveling Synonyms bump, collision, concussion, crash, impingement, impact, jolt, jounce, kick, shock, slam, smash, strike, wallopRelated Words blow, buffet, hit, knock, punch, rap, slap, thump; bashing, battering, bludgeoning, clobbering, hammering, lambasting, licking, pounding, pummeling (also pummelling), thrashing; contact, encounter, meeting, touch

2 something that makes a strong impression because it is so unexpected the flow of her day was interrupted with the jar of an unexpected crisis Synonyms bombshell, surprise, jaw-dropper, jolt, stunnerRelated Words shock, thunderclap; eye-opener, revelation, shocker; amazement, marvel, wonder; fillip, kick, kicker, twist, wrinkle

3 a harsh grating sound the jar of a stuck car door Synonyms creak, grind, rasp, scrape, scratchRelated Words clang, clangor, clank, clash, jangle; scuff; croak, gargle; blast, bleat, bray, screech

1 to express different opinions about something often angrily those two coworkers have such incompatible personalities that it's no wonder they constantly jar Synonyms altercate, argufy, bicker, brabble, brawl, controvert, dispute, fall out, fight, hassle, argue, quarrel, quibble, row, scrap, spat, squabble, tiff, wrangleRelated Words challenge, dare, defy; clash, contend, contest, tangle; cavil, fuss, nitpick; consider, debate, discuss; kick, object, protestNear Antonyms coexist, get along; accept, agree, assent, concur, consent

2 to be out of harmony or agreement usually noticeably the bright orange of the walls jars with the light pastels of the furnishings Synonyms collide, conflict, disaccord, discord, clashRelated Words battle, combat, engage, fight, war (against); chafe, gall, grate, jangle; differ, disagree, dissentNear Antonyms agree, assent, coincide, concur, correspondAntonyms accord, blend, conform (to or with), fit, harmonize, match