imitator vs person

imitator and person both are nouns.

Word	Noun	Adjective	Verb	Adverb
imitator	Yes	No	No	No
person	Yes	No	No	No

imitator (noun)	person (noun)
someone who copies the words or behavior of another	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential
someone who (fraudulently) assumes the appearance of another	a human body (usually including the clothing)
	a grammatical category used in the classification of pronouns, possessive determiners, and verb forms according to whether they indicate the speaker, the addressee, or a third party