The offspring of a human being is called a child. When you see a single boy or girl, you will call him/her a child. However, if you see them playing in a group, you will call them children, as it is a plural word. It is a usual way of addressing the young ones whether they are in a classroom or playground. For example, a school teacher will use a sentence like, “The class is over children.”
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Just like children, the word ‘kids’ is also used for the young ones, who are present somewhere in a group. Interestingly, this term was used to represent the offspring of a goat in the 16th century. However, people started using it for their own children and it became common with the passage of time.
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