What is Child ?
Child is (noun) 1. a young boy or girl There was no TV when my mother was a child. Here is a photograph of the Prime Minister as a child. A group of children were playing on the beach. 2. the son or daughter Whose child is that? How many children have they got? They have six children – two boys and four girls. (NOTE: The plural is children )
source: Easier English, Student Dictionary Upper Intermediate Level