ear

(noun) the sense organ for hearing and equilibrium.

(noun) good hearing. Examples: "He had a keen ear." "A good ear for pitch."

(noun) the externally visible cartilaginous structure of the external ear. Synonyms: auricle, pinna.

(noun) attention to what is said. Examples: "He tried to get her ear."

(noun) fruiting spike of a cereal plant especially corn. Synonyms: spike, capitulum.