joke vs behave

joke is a noun but behave is not a noun.

Word	Noun	Adjective	Verb	Adverb
joke	Yes	No	Yes	No
behave	No	No	Yes	No

As verbs, behave is a hypernym of joke; that is, behave is a word with a broader meaning than joke:

joke: act in a funny or teasing way
behave: behave in a certain manner; show a certain behavior; conduct or comport oneself

Other hypernyms of joke include acquit, act, bear, carry, comport, conduct, deport, do.

joke (noun)	behave (noun)
a ludicrous or grotesque act done for fun and amusement
activity characterized by good humor
a triviality not to be taken seriously
a humorous anecdote or remark intended to provoke laughter

joke (verb)	behave (verb)
act in a funny or teasing way	behave in a certain manner; show a certain behavior; conduct or comport oneself
tell a joke; speak humorously	behave well or properly