- present participle of roar.
roaring
Americannoun
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the act of a person, animal, or thing that roars.
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a loud, deep cry or sound or a series of such sounds.
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Veterinary Pathology. a disease of horses, caused by respiratory obstruction or vocal cord paralysis, and characterized by loud or rough breathing sounds.
adjective
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making or causing a roar, as an animal or thunder.
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brisk or highly successful, as trade.
He did a roaring business selling watches to tourists.
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characterized by noisy, disorderly behavior; boisterous; riotous.
roaring revelry.
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complete; utter; out-and-out.
a roaring idiot; a roaring success.
adverb
adjective
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informal very brisk and profitable (esp in the phrase a roaring trade )
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the period of the Australian goldrushes
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derogatory (intensifier)
a roaring communist
adverb
noun
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a loud prolonged cry
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a debilitating breathing defect of horses characterized by rasping sounds with each breath: caused by inflammation of the respiratory tract or obstruction of the larynx Compare whistling
Other Word Forms
Etymology
Origin of roaring
before 1000; Middle English roryng (noun, adj.), Old English rarung (noun). See roar, -ing 1, -ing 2
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The artificial intelligence boom has been roaring for a few years now, but a few key factors have made this summer a particular inflection point.
From Slate • Jul. 2, 2026
A photo of Serena Williams roaring makes the Guardian's front page, calling her comeback "no fairytale".
From BBC • Jul. 1, 2026
And he certainly doesn’t want them to panic sell because they think a roaring market means a crash is coming.
From MarketWatch • Jun. 25, 2026
Other protesters posed next to a Cepeda float, while honking horns, roaring motorbike engines and shouts of "resistance!" filled the air.
From Barron's • Jun. 22, 2026
Akira reached around Sue, took the reins, and with a click of her tongue and a squeeze of her legs, they took off into the dark, smoky woods, Morris roaring angrily at their escape.
From "Two Degrees" by Alan Gratz
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
