stifle

Synonyms: asphyxiate black out bring to screeching halt burke check choke choke back clamp down clam up constipate cork cover up crack down curb dry up extinguish gag hold it down hush hush up kill muffle muzzle put the lid on repress shut up silence sit on smother spike squash squelch stagnate stop strangle stultify suffocate suppress torpedo trammel

Antonyms: encourage help persuade