Cachinnation and Crack-up

Cachinnation noun - An explosive sound that is a sign of amusement.

Crack-up and cachinnation are semantically related In some cases you can use "Crack-up" instead the word "Cachinnation" as an adjective or a noun.

Crack-up noun - A mental or nervous collapse.

Cachinnation and crack-up are semantically related in amusement topic. Sometimes you can use "Cachinnation" instead the phrase "Crack-up" as an adjective or a noun, if it concerns topics such as laugh, laughing, audible expression of amusement.