Fast vs Quick

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

 FastQuick
MeaningMoving or happening quickly.happening fast or in a short time
CEFR levelA1A1
Part of speechadjectiveadjective
Usage notesUse 'fast' to describe speed, but be cautious when using it with 'to' (as in 'to fast', it means to not eat for a period of time). Appropriate in both written and spoken contexts.Used to describe actions or things that happen with speed. Avoid using in very formal situations; instead, use 'rapid' or 'swift'.

Frequently asked questions: Fast vs Quick

What's the difference between "Fast" and "Quick"?

"Fast" means: Moving or happening quickly. "Quick" means: happening fast or in a short time

When should I use "Fast" and "Quick"?

They can all be used in everyday English.

Are "Fast" and "Quick" the same CEFR level?

"Fast" is at A1, "Quick" is at A1 on the CEFR scale.

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