When to use mouth in Korean
Korean: 입[ ip ]

When to use it
입 means “mouth.” It is the part of your face you use to eat, drink, speak, and smile. You can use it in simple daily sentences about food, talking, health, and expressions.
Example sentences
집에서 양치 전에 입을 헹궈요.
At home, I rinse my mouth before brushing my teeth.
학교에서 책을 읽을 때 입을 크게 벌려요.
At school, I open my mouth wide when I read a book aloud.
밖이 추워서 목도리로 입을 가렸어요.
It was cold outside, so I covered my mouth with a scarf.
친구와 말할 때 입에 음식이 있으면 안 돼요.
When you talk with a friend, you should not have food in your mouth.
빵집에서 뜨거운 빵을 먹고 입을 데었어요.
I burned my mouth eating hot bread at the bakery.
여행 중에 버스에서 자다가 입이 살짝 벌어졌어요.
While traveling, my mouth opened a little as I slept on the bus.