Ear, Ears
noun
The kanji and the word are exactly the same. That means they share meanings as well.
みみ
Since this word is made up of a single kanji, it should use the kun'yomi reading which is the reading you learned with the kanji. So you should be able to read this word already.
うちの犬の耳は、いつも立っています。
Our dog's ears are always perked up.
ついにウワサが王の耳に入った。
Finally, the rumor reached the king's ear.
パンの耳とピザの耳、どっちがいい?
Which do you like more, bread crust or pizza crust?