Haze vs Smog

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

Haze

Top 2,000 (common)

Smog

Top 3,000 (common)
Most common: Haze
 HazeSmog
Pronunciation🇬🇧 //heɪz//🇺🇸 //heɪz//🇬🇧 //smɒg//🇺🇸 //smɔɡ//
MeaningA thick mist in the air that makes it hard to see.A type of air pollution that combines smoke and fog.
ExampleThe view was limited due to the morning haze over the hills.The city was covered in smog, making it hard to breathe.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 3,000 (common)
Collocationsthick haze, air quality and haze, haze of smoke, haze at sunrise, haze causing visibility issuesheavy smog, persistent smog, urban smog, smog alert, thick smog
Common mistakesConfusing 'haze' with 'fog' - haze is less dense., Using 'haze' inappropriately to refer to emotional states., Mixing it up with 'hazy' when describing something unclear.Confused with 'fog' - smog is polluted air, while fog is just water vapor., Using 'smog' to describe non-pollution related fog., Assuming 'smog' is only seen in industrial areas - it can occur in any polluted city.
Usage notesUse 'haze' when describing poor visibility due to moisture or pollution. It's not typically used in formal writing.Use 'smog' in discussions about air quality or environmental issues. It's appropriate for both formal and informal contexts.

Frequently asked questions: Haze vs Smog

What's the difference between Haze and Smog?

Haze: A thick mist in the air that makes it hard to see. Smog: A type of air pollution that combines smoke and fog.

Which is more common: Haze and Smog?

Haze is the most common in everyday English.

Can you show an example of each?

Haze: The view was limited due to the morning haze over the hills. Smog: The city was covered in smog, making it hard to breathe.

Can I use Haze and Smog interchangeably?

Not always. Haze and Smog 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.

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