Fellow vs Guy

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

 FellowGuy
MeaningA person who shares something in common with you, like a job or interest.A man or a boy.
Register-informal
CEFR levelB2A2
Part of speechadjectivenoun
Usage notesUsed when referring to people in a similar group, often in an academic or professional context. Avoid using for casual conversations; instead, use 'friend' or 'buddy'.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: Fellow vs Guy

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

"Fellow" means: A person who shares something in common with you, like a job or interest. "Guy" means: A man or a boy.

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

"Guy" is informal.

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

"Fellow" is at B2, "Guy" is at A2 on the CEFR scale.

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