Meaning & use

smog

noun·Academic

A form of air pollution caused by smoke and other pollutants combining with fog or sunlight.

See it in a sentence

Thick smog hung over the city, making it hard to see distant buildings.

Residents were advised to stay indoors when smog levels reached hazardous readings.

A note on using this word

The word blends 'smoke' and 'fog'; it often signals a public-health warning in weather and news reports.

Words with a similar meaning

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