Horse
noun
The kanji and the word are exactly the same. That means they share meanings as well.
うま
Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word:
Imagine someone riding a horse. Who is that person? It's Uma (うま) Thurman, the famous actress.
あの馬に、ニンジンやリンゴをあげてもいいですか？
Is it okay to give that horse carrots and apples?
わたしの馬は、また一つこんなんをのりこえました。
My horse has overcome yet another difficulty.
お年寄りたちが次から次へと馬から落ちたの、めちゃくちゃ面白いと思うんだけど〜！
I find it unreasonably funny when old people fall off of horses one after another.