joke vs acquit

joke is a noun but acquit is not a noun.

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

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

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

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

joke (noun)	acquit (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)	acquit (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	pronounce not guilty of criminal charges