Synonyms and related words :
amusement, brilliance, cleverness, facetiousness, frivolity, fun, funniness, glee, gleefulness, high glee, hilariousness, hilarity, humorousness, jocoseness, jocundity, joking, jolliness, jollity, joshing, joviality, joy, joyfulness, joyousness, keen-wittedness, keenness, laughter, levity, merriment, merriness, mirth, mirthfulness, nimble-wittedness, pleasantry, pungency, quick-wittedness, saltiness, sharpness, smartness, wittiness