Meanings

one ear

left ear

mouth and ear

cloud ear mushroom (Auricularia auricula-judae)

being readily aware of rumors and gossip

bolt from the blue

something heard while sleeping

deafness

good advice is harsh to the ears

sharp eyes and ears used for collecting information far and wide

young woman with a lot of superficial knowledge about sex, etc.

to be told or made to hear something so often that you (metaphorically) get calluses on your ears

to hear

to lend an ear

all at once (usu. of payment)

selvedge (non-fray machined edge of fabrics)

feeling one gets from listening to something

ear piercing

ear piercing

to control