Some people worry that kid, when used of a child rather than a juvenile goat, is either slang or too colloquial to merit acceptance in standard English.
The fact is that we have been using kid to refer to a child that is human, rather than goatish, for more than three hundred years now. The Oxford English Dictionary notes that although this word was considered “low slang” when it first began being used, it had entered “familiar speech” by the 19th century.
In contemporary English, kid is neither slang nor improper. It is, however, most definitely informal, so those writing professionally or in a formal register might prefer to use child.
the birth of a child
She's pregnant with their first child.
a play for both children and adults
All of their children are grown now.
an elderly couple and their adult children
Men are such children sometimes.
Recent Examples on the Web
Examples are automatically compiled from online sources to
show current usage.Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Age limits inspired by Australia law won’t hamper role adults play in raising children.—Ramesh Ponnuru, Washington Post, 12 Mar. 2026 Did someone repaint the mechanical horses for children one too many times and now their eyes look crazed?—Xuan Juliana Wang, Los Angeles Times, 12 Mar. 2026 The projectiles fell short, but Israel carried out retaliatory strikes in Beirut and across Lebanon, killing at least six hundred people, including ninety-one children, injuring more than a thousand, and displacing some eight hundred thousand.—Sudarsan Raghavan, New Yorker, 12 Mar. 2026 Proceed by entering your child’s phone number and verifying their age.—Jibin Joseph, PC Magazine, 12 Mar. 2026 See All Example Sentences for child
Word History
Etymology
Middle English, from Old English cild; akin to Goth kilthei womb, and perhaps to Sanskrit jaṭhara belly
First Known Use
before the 12th century, in the meaning defined at sense 3a
Time Traveler
The first known use of child was
before the 12th century
: a young person especially between infancy and youth
Legal Definition
child
noun
plural children
1
: a son or daughter of any age and usually including one formally adopted compare issue
Note:
The word child as used in a statute or will is often held to include a stepchild, an illegitimate child, a person for whom one stands in loco parentis, or sometimes a more remote descendant, such as a grandchild. In interpreting the word child as used in a will, the court will try to effectuate the intent of the person who made the will as it can be determined from the language of the will.
2
: a person below an age specified by law : infant, minor