When to use child in Korean
Korean: 아이[ a-i ]

When to use it
The word "child" means a young person. In Korean, this is 아이. You can use it in everyday situations to talk about a kid at home, at school, or outside. For more than one child, Korean often uses 아이들.
Example sentences
집에 아이가 있어요.
There is a child at home.
저 아이는 학교에 가요.
That child goes to school.
공원에서 아이들이 뛰어요.
Children run in the park.
아이가 물을 마시고 싶어해요.
The child wants to drink water.
슈퍼에서 아이를 위해 과자를 샀어요.
I bought snacks for the child at the supermarket.
여행할 때 아이와 기차를 타요.
When we travel, we take the train with the child.