to reduce to utter ruin or nonexistence; destroy utterly

The heavy bombing almost annihilated the city.

to destroy the collective existence or main body of; wipe out

to annihilate an army.

to annul; make void

to annihilate a law.

to cancel the effect of; nullify.

to defeat completely; vanquish

Our basketball team annihilated the visiting team.

verb

help , preserve , revive , save

verb

abate , abolish , abrogate , annul , blot out * , crush * , decimate , demolish , do in * , eradicate , erase , expunge , exterminate , extinguish , extirpate , finish off , invalidate , liquidate , massacre , murder , negate , nullify , obliterate , quash , quell , raze , root out * , rub out * , ruin , slaughter , take out * , undo , vitiate , wipe out * , wrack * , wreck , blot out , clear , kill , remove , root , rub out , snuff out , stamp out , uproot , wipe out , butcher , crush , drub , overpower , smash , steamroller , thrash , trounce , vanquish , cancel , set aside , void , deracinate , destroy , devour , execute , neutralize , overrun , pulverize , rout , slay , squash