A beast or brute; an animal (often used for wild or fierce animals); can also be used figuratively to describe someone as brutish.
森の中で獣の足跡を見つけた。
I found animal tracks in the forest.
夜、獣の遠吠えが聞こえた。
At night, the howling of beasts could be heard.
その戦士は獣のように力強かった。
The warrior was as powerful as a beast.
A slang/creative-culture use referring to anthropomorphic animal characters (e.g., in the furry subculture).
そのイベントには獣(けもの)コスプレの人がたくさん来ていた。
Many people in beast (kemono) cosplay came to that event.
コミュニティでは、自分の『獣』キャラを描いて交流している。
In the community, people draw and share their own 'beast' characters.