punk rocker vs teenager

punk rocker and teenager both are nouns.

Word	Noun	Adjective	Verb	Adverb
punk rocker	Yes	No	No	No
teenager	Yes	No	No	No

As nouns, teenager is a hypernym of punk rocker; that is, teenager is a word with a broader meaning than punk rocker:

punk rocker: a teenager or young adult who is a performer (or enthusiast) of punk rock and a member of the punk youth subculture
teenager: a juvenile between the onset of puberty and maturity

Other hypernyms of punk rocker include adolescent, stripling, teen.

punk rocker (noun)	teenager (noun)
a teenager or young adult who is a performer (or enthusiast) of punk rock and a member of the punk youth subculture	a juvenile between the onset of puberty and maturity