overturn
verb
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
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Merriam-Webster unabridged



