To Leak
To Leak Out
intransitive verb, ichidan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means leak so the verb vocab version is to leak.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: Causing you to leak all over the floor (we're talking blood, here) is your friend Moe (も). If you know someone named Moe, imagine them doing this. If you don't, think of a famous Moe.
音が漏れるので、カベに防音材を取り付けました。
I installed soundproofing materials on the wall to prevent noise leakage.
ねえ、なんかガスが漏れてる臭いがしない？
Hey, doesn’t it smell like leaking gas?
やばい！おしっこ漏れる！ウンチも漏れそう…。
Oh no! I'm about to pee myself! I might poop too…
今FBIが国家機密情報がどこから漏れたのか捜査しています。
The FBI is currently investigating where the classified national information leaked from.