gag

ɡaɡ

noun

a piece of cloth put in or over a person’s mouth to prevent them from speaking.

they tied him up and put a gag in his mouth

muzzle,tie,restraint

verb

put a gag on (someone).

she was bound and gagged by robbers

stop up,block,plug,clog,stifle,smother,muffle,put a gag on,silence,hush,quiet