[verb] [T] - to stop (something), esp. by using forcePolice in riot gear were called in to quell the disturbances/unrest.This latest setback will have done nothing to quell the growing doubts about the future of the club.The army quelled the rebellion in September, arresting dozens of the participants.
QUELL
Meaning of QUELL in English
Cambridge English vocab. Кембриджский английский словарь. 2012