auditory sense vs ear

auditory sense and ear both are nouns.

Word	Noun	Adjective	Verb	Adverb
auditory sense	Yes	No	No	No
ear	Yes	No	No	No

As nouns, ear is a hyponym of auditory sense; that is, ear is a word with a more specific, narrower meaning than auditory sense:

Other hyponyms of auditory sense include absolute pitch, perfect pitch.

auditory sense (noun)	ear (noun)
the ability to hear; the auditory faculty	the sense organ for hearing and equilibrium
	the externally visible cartilaginous structure of the external ear
	good hearing
	attention to what is said
	fruiting spike of a cereal plant especially corn