overturn
🇺🇸
/ˌəʊvərˈtɜːrn/
🇬🇧
/ˌəʊvəˈtɜːn/
verb
C1
to turn something over so the top is where the bottom was
He stood up quickly, causing the chair to overturn.
C1
to officially change a legal decision because it was wrong
The appeal court decided to overturn his conviction.
R
to prove that a belief or idea is wrong
Her research helped overturn old theories about the disease.
translation
to turn something over so the top is where the bottom was; to officially change a legal decision because it was wrong; to prove that a belief or idea is wrong
Word Forms
3rd Present
overturns
Past
overturned
Perfect
overturned
Progressive
overturning