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blowout

American  
[bloh-out] / ˈbloʊˌaʊt /

noun

  1. a sudden bursting or rupture of an automobile tire.

  2. a sudden or violent escape of air, steam, or the like.

  3. a hollow formed in a region of shifting sands or light soil by the action of the wind.

  4. an uncontrollable escape of oil, gas, or water from a well.

  5. a service at a hair salon in which the hair is blow-dried and styled.

  6. Aeronautics. flame-out.

  7. Slang. a lavish party or entertainment.

  8. Slang. a decisive victory or defeat.

  9.  blowout saleSlang. a sale featuring very large discounts.


Etymology

Origin of blowout

First recorded in 1815–25; noun use of verb phrase blow out

Explanation

When something stops working or breaks down, you can call it a blowout. The blowout of a city's electrical system can be a particularly big problem. A blowout most often involves air or gas pressure — a blowout when you're driving on the highway is a popped tire. You can also use the word to mean a really easy victory in sports, like your favorite football team's blowout victory over its rival. Yet another meaning of blowout is a fabulous party: "Let's have a blowout to celebrate your twenty-first birthday!" The original, colloquial American meaning of blowout was "outburst," or what might today be called a "blow up."

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Vocabulary lists containing blowout

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.

By treating methane waste with the same gravity as a fire or a blowout, the industry can eliminate a major liability, addressing the world’s immediate energy needs efficiently and responsibly.

From The Wall Street Journal • May 21, 2026

While oil has already had a blowout year due to the unresolved and devastating Iran war, some say it’s underpriced as big shortages loom.

From MarketWatch • May 14, 2026

“We could see a blowout in longer-dated gilts if this turns into a dogfight,” he said, referring to U.K. government bonds.

From The Wall Street Journal • May 12, 2026

The Aces were coming off a 33-point blowout opening day loss to Phoenix on Saturday but showed no sign of fatigue.

From Los Angeles Times • May 10, 2026

My parents corner me in a hug that mimics the one at Aaron’s blowout party, when we were confirming that our futures were bright.

From "It’s Kind of a Funny Story" by Ned Vizzini

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