overturn

nouns

the act of upsetting something

"he was badly bruised by the upset of his sled at a high speed"

overturn, turnover, upset

an improbable and unexpected victory

"the biggest upset since David beat Goliath"

overturn, upset

turn from an upright or normal position

"The big vase overturned"; "The canoe tumped over"

overturn, tip over, tump over, turn over

cause to overturn from an upright or normal position

"The cat knocked over the flower vase"; "the clumsy customer turned over the vase"; "he tumped over his beer"

rule against

"The Republicans were overruled when the House voted on the bill"

override, overrule, overthrow, overturn, reverse

cause the downfall of; of rulers

"The Czar was overthrown"; "subvert the ruling class"

bring down, overthrow, overturn, subvert

cancel officially

"He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence"

annul, countermand, lift, overturn, repeal, rescind, reverse, revoke, vacate

change radically

"E-mail revolutionized communication in academe"