Fang
Tusk
noun
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:
Using your animal fang you are able to eat kibble (きば).
ハロウィン用の偽物の牙の在庫が切れそうです。
Our stock of fake fangs for Halloween is running out.