auricle vs ear

auricle and ear both are nouns.

Word	Noun	Adjective	Verb	Adverb
auricle	Yes	No	No	No
ear	Yes	No	No	No

As nouns, auricle and ear are synonyms defined as:

auricle and ear: the externally visible cartilaginous structure of the external ear

Other synonyms of auricle include pinna.

auricle (noun)	ear (noun)
a small conical pouch projecting from the upper anterior part of each atrium of the heart	the sense organ for hearing and equilibrium
the externally visible cartilaginous structure of the external ear	the externally visible cartilaginous structure of the external ear
	good hearing
	attention to what is said
	fruiting spike of a cereal plant especially corn