Dictionary.com
Thesaurus.com
Synonyms

overturn

American  
[oh-ver-turn, oh-ver-turn] / ˌoʊ vərˈtɜrn, ˈoʊ vərˌtɜrn /

verb (used with object)

  1. to cause (something) to turn onto its side, face, or back; upset.

    to overturn a vase.

  2. to destroy the power or validity of; overthrow; defeat: The new findings have not overturned the theory itself.

    The conspiracy finally overturned the regime.

    The new findings have not overturned the theory itself.

    Synonyms:
    conquer
  3. to reverse (an official or legal decision).

    Rather than accept defeat, the company filed a complaint in federal appeals court to overturn the ruling.


verb (used without object)

  1. to turn onto its side, face, or back; capsize.

    When his canoe overturned, he lost scientific instruments and journals.

noun

  1. the act of overturning.

  2. the state of being overturned.

overturn British  

verb

  1. to turn or cause to turn from an upright or normal position

  2. (tr) to overthrow or destroy

  3. (tr) to invalidate; reverse

    the bill was passed in the Commons but overturned in the Lords

"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

noun

  1. the act of overturning or the state of being overturned

"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

  • overturnable adjective

Etymology

Origin of overturn

First recorded in 1175–1225; Middle English; over-, turn

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.

Ukrainian skeleton racer Vladyslav Heraskevych has lost his bid to overturn an Olympic disqualification over his helmet decorated with tributes to Ukraine’s war dead.

From Los Angeles Times

Footage from the city of Bnei Brak showed the women running through streets strewn with rubbish and overturned bins as police officers formed a protective barrier.

From BBC

In September 2020, she and three other opposition activists won city council seats in the Siberian city of Novosibirsk, helping overturn the ruling party's majority on the council.

From Barron's

Two overturned bicycles rested against the snow in the front yard.

From Barron's

Monday's rally took place just half an hour after protesters lost a legal bid to overturn the major powers designation.

From BBC