nouns
a humorous anecdote or remark intended to provoke laughter
"he told a very funny joke"; "he knows a million gags"; "thanks for the laugh"; "he laughed unpleasantly at his own jest"; "even a schoolboy's jape is supposed to have some ascertainable point"
activity characterized by good humor
a ludicrous or grotesque act done for fun and amusement
a triviality not to be taken seriously
"I regarded his campaign for mayor as a joke"
is a type of (narrower)
the quality of being unimportant and petty or frivolous