What does "children" mean?

1. (young people) more than one young person who is not yet an adult. 2. (sons and daughters) your sons or daughters, even if they are now adults.

How do you use "children"?

Often used with a possessive pronoun like 'their' or 'my'.

Is it correct to say "The childrens are playing in the garden."?

No — say "The children are playing in the garden.". Children is already plural. Do not add an 's' to the end of the word.

children

US //ˈtʃɪɫdɹən// UK //tʃˈɪldɹən// chil·dren

1 young people (n.)
A1 Beginner

more than one young person who is not yet an adult.

the plural form of child, denoting multiple young human beings before the age of puberty.

Example

The children were playing happily in the park after school.

Example

The local library offers a variety of reading programmes designed to engage children of all ages during the summer holidays.
- adults
Pitfall

The childrens are playing in the garden.

The children are playing in the garden.

Children is already plural. Do not add an 's' to the end of the word.
2 sons and daughters (n.)
A2 Elementary

your sons or daughters, even if they are now adults.

offspring of any age in relation to their parents.

Example

They have three grown children who all live in different cities.

Example

Even though her children are now successful professionals with families of their own, she still worries about them constantly.

Usage

Often used with a possessive pronoun like 'their' or 'my'.
- offspring
- descendants
- parents

Origin

From Middle English children, alteration of earlier childre ("children"; > English dialectal childer), from Old English ċildru, ċildra (“children”), nominative and accusative plural of ċild (“child”), equivalent to child + -ren.