Night
Evening
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 should use the kun'yomi reading. Fortunately, this is the よる reading you learned with the kanji!
夜のパリはロマンチックだ。
Paris at night is romantic.
今日の夜ごはんはパスタです。
Today's dinner is pasta.
私は夜に出かけることが多いです。
I often go out at night.