Noun
1. gag
2. laugh, jest, jape, wit, humor, humour, witticism, wittiness, jest
3. jocularity, diversion, recreation, antic
4. prank, trick, caper, put-on, diversion, recreation, pettiness
Verb
1. triviality, slightness, jest
2. communicate, intercommunicate, jest
2. act, behave, do