to destroy the power of; overthrow; defeat; vanquish.

to turn over on its side, face, or back; upset

to overturn a vase.

to turn on its side, face, or back; capsize

The boat overturned during the storm.

the act of overturning.

the state of being overturned.

verb

annul , bring down , capsize , countermand , down , invalidate , invert , keel over , knock down , knock over , nullify , overbalance , prostrate , repeal , rescind , reverse , roll , set aside , spill , tip over , topple , tumble , turn over , turn upside down , upend , upset , upturn , void , overthrow , subvert , unhorse , tilt , tip