mirror vs portrayal

mirror and portrayal both are nouns.

Word	Noun	Adjective	Verb	Adverb
mirror	Yes	No	Yes	No
portrayal	Yes	No	No	No

As nouns, portrayal is a hypernym of mirror; that is, portrayal is a word with a broader meaning than mirror:

Other hypernyms of mirror include depicting, depiction, portraying.

mirror (noun)	portrayal (noun)
polished surface that forms images by reflecting light	representation by drawing or painting etc
a faithful depiction or reflection	acting the part of a character on stage; dramatically representing the character by speech and action and gesture
	any likeness of a person, in any medium
	a representation by picture or portraiture
	a word picture of a person's appearance and character

mirror (verb)	portrayal (verb)
reflect or resemble
reflect as if in a mirror