\ ˈsu̇t How to pronounce soot (audio) , ˈsət, ˈsüt How to pronounce soot (audio) \

Definition of soot

 (Entry 1 of 2)

: a black substance formed by combustion or separated from fuel during combustion, rising in fine particles, and adhering to the sides of the chimney or pipe conveying the smoke especially : the fine powder consisting chiefly of carbon that colors smoke


sooted; sooting; soots

Definition of soot (Entry 2 of 2)

transitive verb

: to coat or cover with soot

Examples of soot in a Sentence

Recent Examples on the Web: Noun

There was still soot on the walls above the mine’s old candle notches. Colin Campbell,, "'Secret' tunnels are hidden under Baltimore's Federal Hill. Where did they come from and what lies inside?," 26 June 2019 Both grandparents died from smoke inhalation, which the medical examiner concluded based on the soot in their lungs. Talis Shelbourne, Milwaukee Journal Sentinel, "Milwaukee man sentenced for revenge plan that killed his grandparents," 20 June 2019 Often immigrants bearing the soot and scars of poverty, unrest, and other unappealing hardships. Juliet Grames,, "An open letter to my white MAGA-voting uncles on the occasion of my Italian-born great aunt’s funeral," 20 June 2019 The soot can settle on the snow and increase melting in the summer sun. Scott K. Johnson, Ars Technica, "Declassified satellite images show how Himalayan glaciers have shrunk," 19 June 2019 The fuel was also the lubricant for many of the engines’ moving parts—and the soot produced early on gave the lower section of the nozzle more protection from the heat of the growing flame within. Oliver Morton, WIRED, "The Beauty and Madness of Sending a Man to the Moon," 4 June 2019 The production process releases soot into the atmosphere, and the U.S. alone discards millions of tires each year. Sarah Gibbens, National Geographic, "Before plastic, rubber filled American homes," 20 May 2019 The leftover soot that cakes firefighter uniforms is considered a carcinogen, according to the National Cancer Institute. Julia Fair,, "Retired Covington firefighter dies from melanoma cancer," 25 June 2019 The soot mixed in with the pollen told investigators her surroundings were urban. Zoë Schlanger, Quartz, "Forensic pollen scientists are helping the US track opioids," 6 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'soot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of soot


before the 12th century, in the meaning defined above


1602, in the meaning defined above

History and Etymology for soot


Middle English, from Old English sōt; akin to Old Irish suide soot, Old English sittan to sit

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Dictionary Entries near soot





soot blowing

soot brown


Statistics for soot

Last Updated

13 Jul 2019

Look-up Popularity

Time Traveler for soot

The first known use of soot was before the 12th century

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More Definitions for soot



English Language Learners Definition of soot

: a black powder that is formed when something (such as wood or coal) is burned


\ ˈsu̇t How to pronounce soot (audio) , ˈsət\

Kids Definition of soot

: a black powder formed when something is burned : the very fine powder that colors smoke

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More from Merriam-Webster on soot

Rhyming Dictionary: Words that rhyme with soot

Thesaurus: All synonyms and antonyms for soot

Spanish Central: Translation of soot

Nglish: Translation of soot for Spanish Speakers

Britannica English: Translation of soot for Arabic Speakers Encyclopedia article about soot

Comments on soot

What made you want to look up soot? Please tell us where you read or heard it (including the quote, if possible).


to form ideas or theories about something

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