Smog vs Smoke

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

 SmogSmoke
MeaningA type of air pollution that combines smoke and fog.A gray or black cloud of tiny particles that comes from burning things.
CEFR level-A2
Part of speechnoun
Usage notesUse 'smog' in discussions about air quality or environmental issues. It's appropriate for both formal and informal contexts.Used when talking about both the act of smoking and the smoke produced by fire. In formal contexts, use 'smoke' to refer to pollution or the effects of smoking. Avoid in conversations about health unless addressing smoking directly.

Frequently asked questions: Smog vs Smoke

What's the difference between "Smog" and "Smoke"?

"Smog" means: A type of air pollution that combines smoke and fog. "Smoke" means: A gray or black cloud of tiny particles that comes from burning things.

When should I use "Smog" and "Smoke"?

They can all be used in everyday English.

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