overturn
o‧ver‧turn /ˌəʊvəˈtɜːn $ ˌoʊvərˈtɜːrn/
verb1. [intransitive and transitive] if you overturn something, or if it overturns, it turns upside down or falls over on its side:
Leslie jumped to her feet, overturning her chair.
His car overturned, trapping him inside.
2. overturn a decision/verdict etc to change a decision or result so that it becomes the opposite of what it was before:
His conviction was overturned by the Court of Appeal.
3. [transitive] to suddenly remove a government from power, especially by using violence
SYN overthrow
o‧ver‧turn /ˌəʊvəˈtɜːn $ ˌoʊvərˈtɜːrn/
verb1. [intransitive and transitive] if you overturn something, or if it overturns, it turns upside down or falls over on its side:
2. overturn a decision/verdict etc to change a decision or result so that it becomes the opposite of what it was before:
3. [transitive] to suddenly remove a government from power, especially by using violence
SYN overthrow