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overturn

[ verb oh-ver-turn; noun oh-ver-turn ]
/ verb ˌoʊ vərˈtɜrn; noun ˈoʊ vərˌtɜrn /
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See synonyms for: overturn / overturned / overturning on Thesaurus.com

verb (used with object)
to cause (something) to turn onto its side, face, or back; upset: to overturn a vase.
to destroy the power or validity of; overthrow; defeat: The conspiracy finally overturned the regime.The new findings have not overturned the theory itself.
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)
to turn onto its side, face, or back; capsize: When his canoe overturned, he lost scientific instruments and journals.
noun
the act of overturning.
the state of being overturned.
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Origin of overturn

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

synonym study for overturn

1. See upset.

OTHER WORDS FROM overturn

o·ver·turn·a·ble, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use overturn in a sentence

British Dictionary definitions for overturn

overturn

verb (ˌəʊvəˈtɜːn)
to turn or cause to turn from an upright or normal position
(tr) to overthrow or destroy
(tr) to invalidate; reversethe bill was passed in the Commons but overturned in the Lords
noun (ˈəʊvəˌtɜːn)
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
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