English Reference

Word

soot

US/ˈsʊt/

UK/sˈʊt/

Definition

n. the black powder that comes from burning things like wood or coal. It often collects inside chimneys or on walls near a fire.

n. a black, powdery substance consisting largely of amorphous carbon, produced by the incomplete combustion of organic matter.

Examples

“The chimney was full of black soot.”

“After the fireplace was cleaned, a thin layer of soot settled on the white rug in the living room.”

“Environmental scientists monitor the accumulation of soot in urban areas, as these fine carbon particles contribute significantly to both air pollution and the acceleration of glacial melting.”

Examples

simple

“The chimney was full of black soot.”

contextual

“After the fireplace was cleaned, a thin layer of soot settled on the white rug in the living room.”

complex

“Environmental scientists monitor the accumulation of soot in urban areas, as these fine carbon particles contribute significantly to both air pollution and the acceleration of glacial melting.”

Real-World Examples

“And the added power use increases traditional soot and smog air pollution.”
Phys.org · 31 Aug 2026

This entry

Level
B2 · Upper Intermediate
Frequency
Occasional
Updated

Scan code

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English Reference