Boy vs Guy

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

 BoyGuy
MeaningA young male child or teenager.A man or a boy.
Register-informal
CEFR levelA1A2
Part of speechnounnoun
Usage notesUsed to refer to a child or teenager, typically under the age of 18. In formal contexts, refer to 'young man’ or 'male child'.Used in casual conversations. Avoid in formal writing or speeches. Can refer to people in general, not just males, in very informal contexts.

Frequently asked questions: Boy vs Guy

What's the difference between "Boy" and "Guy"?

"Boy" means: A young male child or teenager. "Guy" means: A man or a boy.

When should I use "Boy" and "Guy"?

"Guy" is informal.

Are "Boy" and "Guy" the same CEFR level?

"Boy" is at A1, "Guy" is at A2 on the CEFR scale.

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