impersonation vs parody

impersonation and parody both are nouns.

Word	Noun	Adjective	Verb	Adverb
impersonation	Yes	No	No	No
parody	Yes	No	Yes	No

As nouns, parody is a hyponym of impersonation; that is, parody is a word with a more specific, narrower meaning than impersonation:

impersonation: a representation of a person that is exaggerated for comic effect
parody: a composition that imitates or misrepresents somebody's style, usually in a humorous way

Other hyponyms of impersonation include mock-heroic, burlesque, lampoon, mockery, pasquinade, put-on, send-up, sendup, spoof, takeoff, travesty.

impersonation (noun)	parody (noun)
imitating the mannerisms of another person	humorous or satirical mimicry
pretending to be another person	a composition that imitates or misrepresents somebody's style, usually in a humorous way
a representation of a person that is exaggerated for comic effect

impersonation (verb)	parody (verb)
	make a parody of
	make a spoof of or make fun of