The kanji and the word are exactly the same. That means they share meanings as well.
Since this word is made up of a single kanji, it probably uses the kun'yomi reading. You did not learn this reading, so here's a mnemonic to help you remember:
A beast... what do you think of when you think of a beast? How about a thing (物, もの) full of fur (毛, け), aka a けもの (fur thing)? A beast is a fur thing, and in Japanese that's けもの. Punnnns.
That guy has eyes like a beast. He’s scary.