over·turn
ˌō-vər-ˈtərn
overturned; overturning; overturns
1
: to cause to turn over : upset
overturned the vase
2
a
: invalidate, destroy
… the degree to which accident could overturn the schemes of wise men …—Oscar Handlin
b
: reverse sense 2a
overturn a court ruling
over·turn
ˈō-vər-ˌtərn
1
: the act of overturning : the state of being overturned
2
: the sinking of surface water and rise of bottom water in a lake or sea that results from changes in temperature that commonly occur in spring and fall
Cite this Entry
“Overturn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overturn. Accessed 12 Aug. 2026.
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