joker vs comic

joker and comic both are nouns.

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

As nouns, comic is a hypernym of joker; that is, comic is a word with a broader meaning than joker:

Other hypernyms of joker include comedian.

joker (noun)	comic (noun)
a playing card that is usually printed with a picture of a jester	a professional performer who tells jokes and performs comical acts
an inconspicuous clause in a document or bill that affects its meaning in a way that is not immediately apparent
a person who enjoys telling or playing jokes
a person who does something thoughtless or annoying

joker (adjective)	comic (adjective)
	of or relating to or characteristic of comedy
	arousing or provoking laughter