When to use to stay still in Korean
Korean: 가만있다[ ga-man-iss-da ]

When to use it
The word 가만있다 means to stay still and not move. You can use it when you want someone to wait quietly or stop moving for a moment. It is common with children, when taking photos, or in places where you need to be calm.
Example sentences
아기가 자고 있으니 가만있어.
The baby is sleeping, so stay still.
선생님이 다들 가만있으라고 했어요.
The teacher told everyone to stay still.
사진 찍을 때 가만있어.
Stay still when I take the picture.
버스에서 잠깐 가만있어 봐.
Stay still for a moment on the bus.
강아지가 무서워서 가만있지 못해요.
The puppy is scared, so it can't stay still.
가게에서 엄마 옆에 가만있어.
Stay still next to Mom in the store.