To fasten a muzzle upon
cage, sheathe, cover, wrap, muffle, envelop, deaden; see also bind 1, gag 1.
Antonyms release*, unfasten, unbind.
gag, restrain, trammel, stifle, restrict, repress, suppress, check, stop, stop one's mouth, hush, still, shush*; see also prevent, quiet 2.
"muzzle." YourDictionary, n.d. Web. 18 August 2018. <http://thesaurus.yourdictionary.com/muzzle>.
muzzle. (n.d.). Retrieved August 18th, 2018, from http://thesaurus.yourdictionary.com/muzzle
The front surface of the head: