wrapper vs plastic wrap

wrapper and plastic wrap both are nouns.

Word	Noun	Adjective	Verb	Adverb
wrapper	Yes	No	No	No
plastic wrap	Yes	No	No	No

As nouns, plastic wrap is a hyponym of wrapper; that is, plastic wrap is a word with a more specific, narrower meaning than wrapper:

wrapper: the covering (usually paper or cellophane) in which something is wrapped
plastic wrap: wrapping consisting of a very thin transparent sheet of plastic

Other hyponyms of wrapper include envelope, film, plastic film, gift wrapping, jacket.

wrapper (noun)	plastic wrap (noun)
cloak that is folded or wrapped around a person	wrapping consisting of a very thin transparent sheet of plastic
a loose dressing gown for women
the covering (usually paper or cellophane) in which something is wrapped