overturn Definition in the Cambridge English Dictionary
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Definition of “overturn” - English Dictionary

Definition of "overturn" - American English Dictionary

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overturnverb [I/T]

 us   /ˌoʊ·vərˈtɜrn/
to ​turn over, or to ​cause something to ​turn over: [I] The ​truck overturned, ​spillingitscargo. To overturn a ​decision or ​judgment is for a ​court to ​change it so it will not be in ​effect: [T] The ​court of ​appeals overturned her ​conviction and ​ordered a new ​trial.
(Definition of overturn from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "overturn" - British English Dictionary

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overturnverb

uk   /ˌəʊ.vəˈtɜːn/  us   /ˌoʊ.vɚˈtɝːn/

overturn verb (GO UPSIDE DOWN)

[I or T] to (​cause to) ​turn over: The ​carskidded off the ​road, ​hit a ​tree and overturned. The ​intruder had overturned some of the ​furniture in the ​house.
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overturn verb (CHANGE)

[T] formal to ​change a ​legaldecision: The ​Court of Appeal overturned the ​earlierdecision. [T] UK If you overturn someone's majority in an ​election in the UK, you ​defeat them: The ​Labourcandidateunexpectedly overturned the ​long-standingTorymajority.
(Definition of overturn from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "overturn" - Business English Dictionary

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overturnverb [T]

uk   us   /ˌəʊvəˈtɜːn/
LAW to ​change a ​legal decision: overturn a decision/verdict/ruling The Court of Appeal overturned the earlier decision.
(Definition of overturn from the Cambridge Business English Dictionary © Cambridge University Press)
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