Child vs The youngest

When to use each in English, with meaning, register, and examples.

Child

Top 1,000 (very common)A1noun

The youngest

Top 2,000 (common)
Most common: Child
 ChildThe youngest
Pronunciation🇬🇧 /["/tʃaɪld/","/ˈtʃɪldrən/"]/🇺🇸 /["/tʃaɪld/","/ˈtʃɪldrən/"]/🇬🇧 //ðə ˈjʌŋɡəst//🇺🇸 //ðə ˈjʌŋɡəst//
MeaningA young human who is not yet an adult.The person who is least old in a group.
ExampleThe child played happily in the park.She is the youngest in her family.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA1-
Part of speechnoun
Collocationslittle, small, young, have, bear, give birth to, be born, develop, grow, actor, bride, soldier, with child, little, small, young, have, bear, give birth to, be born, develop, grow, actor, bride, soldier, with childthe youngest child, the youngest member, the youngest sibling, the youngest competitor, the youngest participant
Antonymsadult, grown-up-
Common mistakesConfused with 'children' — remember 'child' is singular., Using 'child' to refer to pets or animals., Mispronouncing it as 'chaild' instead of 'child'.'Youngest' used without 'the' in a sentence., Confusing 'youngest' with 'youngest one' as a phrase., 'The most young' instead of 'the youngest'.
Usage notesCommonly used to refer to anyone under the age of 18. It is appropriate in both formal and informal contexts, but can sound out of place in discussions about adults or professional settings.Use 'the youngest' when comparing ages within a specific group. Avoid using it in very formal contexts.

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Child
The youngest

Frequently asked questions: Child vs The youngest

What's the difference between Child and The youngest?

Child: A young human who is not yet an adult. The youngest: The person who is least old in a group.

Which is more common: Child and The youngest?

Child is the most common in everyday English.

Can you show an example of each?

Child: The child played happily in the park. The youngest: She is the youngest in her family.

Can I use Child and The youngest interchangeably?

Not always. Child and The youngest are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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