overturn
verb
• tip (something) over so that it is on its side or upside down.
• "the crowd proceeded to overturn cars and set them on fire"
• abolish, invalidate, or reverse (a previous system, decision, situation, etc.).
• "the results overturned previous findings"
Similar:
cancel,
reverse,
rescind,
repeal,
revoke,
retract,
countermand,
withdraw,
take back,
rule against,
disallow,
override,
overrule,
veto,
set aside,
quash,
overthrow,
repudiate,
recant,
annul,
nullify,
declare null and void,
invalidate,
negate,
void,
abrogate,
vacate,
recall,
overturn
noun
• an act of overturning something.