joker vs joke

joker and joke both are nouns.

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

joker (noun)	joke (noun)
a playing card that is usually printed with a picture of a jester	a ludicrous or grotesque act done for fun and amusement
an inconspicuous clause in a document or bill that affects its meaning in a way that is not immediately apparent	activity characterized by good humor
a person who enjoys telling or playing jokes	a triviality not to be taken seriously
a person who does something thoughtless or annoying	a humorous anecdote or remark intended to provoke laughter

joker (verb)	joke (verb)
	act in a funny or teasing way
	tell a joke; speak humorously