Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun crack-up

1 sense of crack-up

Sense 1
breakdown, crack-up -- (a mental or physical breakdown)
       => collapse, prostration -- (an abrupt failure of function or complete physical exhaustion; "the commander's prostration demoralized his men")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb crack-up

3 senses of crack up

Sense 1
crack up, crack, crock up, break up, collapse -- (suffer a nervous breakdown)
       => suffer, sustain, have, get -- (undergo (as of injuries and illnesses); "She suffered a fracture in the accident"; "He had an insulin shock after eating three candy bars"; "She got a bruise on her leg"; "He got his arm broken in the scuffle")

Sense 2
crack up -- (rhapsodize about)
       => laud, extol, exalt, glorify, proclaim -- (praise, glorify, or honor; "extol the virtues of one's children"; "glorify one's spouse's cooking")

Sense 3
break up, crack up -- (laugh unrestrainedly)
       => laugh, express joy, express mirth -- (produce laughter)