Englishvanquish
verb
after five weeks, government troops vanquished the rebels:
conquer, defeat (utterly), beat (hollow), trounce, annihilate, triumph over, win a resounding victory over, be victorious over, best, get the better of, worst, bring someone to their knees, overcome, overwhelm, subdue, subjugate, put down, quell, quash, crush, repress, rout;
informal lick, hammer, clobber, thrash, paste, pound, pulverize, crucify, demolish, destroy, drub, give someone a drubbing, cane, wipe the floor with, walk all over, give someone a hiding, take to the cleaners, blow someone out of the water, make mincemeat of, murder, massacre, slaughter, flatten, turn inside out, tank;
British, informal stuff;
North American, informal blow out, cream, shellac, skunk, slam;
US, informal own.