teenager vs punk rocker

teenager and punk rocker both are nouns.

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

As nouns, punk rocker is a hyponym of teenager; that is, punk rocker is a word with a more specific, narrower meaning than teenager:

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

Other hyponyms of teenager include chebab, mod, pachuco, punk, rocker, young buck, young man.

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