The youngest vs Youngster

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

The youngest

Top 2,000 (common)

Youngster

Top 5,000 (fairly common)C1noun
Most common: The youngest
 The youngestYoungster
Pronunciation🇬🇧 //ðə ˈjʌŋɡəst//🇺🇸 //ðə ˈjʌŋɡəst//🇬🇧 /["/ˈjʌŋstə(r)/"]/🇺🇸 /["/ˈjʌŋstər/"]/
MeaningThe person who is least old in a group.A young person, especially a child or teenager.
ExampleShe is the youngest in her family.The camp is for youngsters aged 8 to 14.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 5,000 (fairly common)
CEFR level-C1
Part of speechnoun
Collocationsthe youngest child, the youngest member, the youngest sibling, the youngest competitor, the youngest participantyoungster club, youngster athlete, youngster generation
Antonyms-elder, adult
Common mistakes'Youngest' used without 'the' in a sentence., Confusing 'youngest' with 'youngest one' as a phrase., 'The most young' instead of 'the youngest'.Confusing with 'youth', which can imply a broader age range., Using it interchangeably with 'kid' in formal contexts., Incorrectly pluralizing as 'youngsterses'.
Usage notesUse 'the youngest' when comparing ages within a specific group. Avoid using it in very formal contexts.Used to refer to children or teens in general contexts. Avoid in highly formal writing; use 'youth' instead in academic settings.

See it in real clips

The youngest

Frequently asked questions: The youngest vs Youngster

What's the difference between The youngest and Youngster?

The youngest: The person who is least old in a group. Youngster: A young person, especially a child or teenager.

Which is more common: The youngest and Youngster?

The youngest is the most common in everyday English.

Can you show an example of each?

The youngest: She is the youngest in her family. Youngster: The camp is for youngsters aged 8 to 14.

Can I use The youngest and Youngster interchangeably?

Not always. The youngest and Youngster 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.

Related comparisons