repress, squash, defeat
decline, lessen, dull, decrease, reduce, diminish, dwindle, slow, quell, subdue, wane, taper
seize, obtain, acquire, occupy, overrun, annex, win, defeat, overcome, overthrow, beat, master, crush, overpower, quell
Quell is a verb.
The police tried to quell the riot.To quell is to quieten and control.When police tried to quell the disturbance, onlookers incited the crowd.
The police were called out to quell the riot.
"Police were sent to quell the riot."
To quell bleeding, cauterize the wound.
The police had been called in to quell a minor disturbance.
The police were able to quell the riot.
overcome, conquer, defeat, command, tame, quiet
Quell your impulse to tie your sister's pigtails to the bedpost.
The dictator is trying to quell the rebellion.