1. to stop or suppress something forcefully, especially violence, disorder, or unrest
2. to calm or reduce strong emotions or feelings

Examples

• The police were called in to quell the riot.
• The government moved quickly to quell the rebellion.
• She took deep breaths to quell her anxiety before the presentation.
• The mayor’s speech helped quell public fears about the new policy.
• Military forces were deployed to quell the uprising.
• He drank some water to quell his thirst.
• The teacher’s firm voice quelled the noise in the classroom.