perfect pitch vs hearing

perfect pitch and hearing both are nouns.

Word	Noun	Adjective	Verb	Adverb
perfect pitch	Yes	No	No	No
hearing	Yes	Yes	No	No

As nouns, hearing is a hypernym of perfect pitch; that is, hearing is a word with a broader meaning than perfect pitch:

Other hypernyms of perfect pitch include audition, auditory modality, auditory sense, sense of hearing.

perfect pitch (noun)	hearing (noun)
the ability to identify the pitch of a tone	the act of hearing attentively
	(law) a proceeding (usually by a court) where evidence is taken for the purpose of determining an issue of fact and reaching a decision based on that evidence
	the ability to hear; the auditory faculty
	a session (of a committee or grand jury) in which witnesses are called and testimony is taken
	the range within which a voice can be heard
	an opportunity to state your case and be heard

perfect pitch (adjective)	hearing (adjective)
	able to perceive sound