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Synonyms

capsize

American  
[kap-sahyz, kap-sahyz] / ˈkæp saɪz, kæpˈsaɪz /

verb (used with or without object)

capsized, capsizing
  1. to turn bottom up; overturn: With a strong kick he capsized the stool.

    The ferry capsized and sank in minutes.

    With a strong kick he capsized the stool.

  2. to upset or collapse: He has a secret that could capsize his career.

    Their marriage almost capsized when they lost their only child.

    He has a secret that could capsize his career.


capsize British  
/ kæpˈsaɪz /

verb

  1. to overturn accidentally; upset

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See upset.

Other Word Forms

  • capsizable adjective
  • capsizal noun
  • noncapsizable adjective
  • uncapsizable adjective
  • uncapsized adjective

Etymology

Origin of capsize

First recorded in 1780–90; origin uncertain

Explanation

To capsize is to overturn, and it usually happens to boats. Don't rock the boat, baby, or you might just capsize. When a boat tips over in a lake, it capsizes, and so does a boy who is sitting on an inner tube when it flips suddenly. Anything overturning in a body of water can be said to capsize. Sometimes vessels that capsize can be righted, like a canoe, and other times they sink to the bottom of the sea. The origin of capsize is uncertain, though it may be related to the Spanish word capuzar, "sink by the head."

Keep Reading on Vocabulary.com

Vocabulary lists containing capsize

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 supply shocks from either would already rock the boat; both together would capsize global markets like a perfect storm,” said Raj.

From MarketWatch • Jan. 12, 2026

In the high north, they pose an additional threat: Sea spray carried at high wind speeds can freeze upon contact with a ship and, if allowed to build up, capsize it.

From The Wall Street Journal • Nov. 30, 2025

"There were no storms or waves but the boat was overloaded," Ephesien Mpambi, a friend of Jean-Florent's told AFP of the fatal capsize.

From Barron's • Oct. 13, 2025

A hiker called 911 around 3 p.m. after witnessing the boat capsize by the shores of D.L.

From Los Angeles Times • Jul. 24, 2025

“Had the boat ever been known to capsize before?” asked the coroner.

From "Rebecca" by Daphne du Maurier