noun

• (countable) The organ of hearing, consisting of the pinna or auricle, auditory canal, eardrum, malleus, incus, stapes and cochlea.
• (countable) The external part of the organ of hearing, the auricle.
  "Judge Short had gone to town, and Farrar was off for a three days' cruise up the lake. I was bitterly regretting I had not gone with him when the distant notes of a coach horn reached my ear, and I descried a four-in-hand winding its way up the inn road from the direction of Mohair."
• (countable, slang) A police informant.
  "No I'm not kidding, and if you don't give it to me I'll let it out that you’re an ear."
• (architecture) An acroterium.

verb

• (humorous, transitive) To take in with the ears; to hear.
  "I eared her language."
• (transitive) To hold by the ears.
  "Sometimes, the helper eared the horse down; and sometimes he used a blindfold."

noun

• (countable) The fruiting body of a grain plant.
  "He is in the fields, harvesting ears of corn."

verb

• (intransitive) To put forth ears in growing; to form ears, as grain does.
  "This corn ears well."