break out
Britishverb
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(intr, adverb) to begin or arise suddenly
panic broke out
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(intr, adverb) to make an escape, esp from prison or confinement
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(of the skin) to erupt (in a rash, pimples, etc)
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(tr, adverb) to launch or introduce (a new product)
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(tr, adverb) to open and start using
break out the champagne
noun
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an escape, esp from prison or confinement
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a great success, esp following relatively disappointing performance
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( as modifier )
a breakout year
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Develop suddenly and forcefully. For example, A fire broke out last night , or He broke out in a sweat . [ a.d. 1000]
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Be affected with a skin eruption, such as a rash or boils, as in A teenager's face often breaks out in pimples . [c. 1300]
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Prepare something for consumption, action, or use, as in Let's break out the champagne , or It's such a fine day—let's break out the fishing rods . [Early 1800s]
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break out of . Force out by breaking; also, escape from confinement. For example, The hurricane broke the glass out of all the windows , or He broke out of prison but was soon apprehended . [Early 1600s]
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Isolate a portion of a body of data, as in Please break out the sales figures from the quarterly report . [Mid-1900s]
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.
He notes that when OpenAI agents conspired to break out of their testing “sandbox” and hacked into the machine-learning platform Hugging Face, it set “off a firestorm in American politics and global politics.”
From The Wall Street Journal ● Oct. 9, 2026
Year: 2011 Compiled by: David Robert Mitchell Of note: Commissioned to commemorate Mitchell’s debut feature film, The Myth of the American Sleepover, years before he would really break out with It Follows.
From Slate ● Oct. 7, 2026
Bukavu, on the shores of Lake Kivu, is known for its wooden houses built on hillsides, where deadly fires often break out.
From Barron's ● Sep. 12, 2026
The company discovered in July that rogue AI agents had schemed in secret to break out of the virtual sandbox created to contain them, infiltrating the open internet and hacking a private company.
From Los Angeles Times ● Sep. 11, 2026
As I read the handwritten message, I felt sweat break out on my back, and for a second or two my vision clouded.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
