Nouns

(n)muscle, musculusone of the contractile organs of the body
(n)muscle, muscular tissueanimal tissue consisting predominantly of contractile cells
(n)musclea bully employed as a thug or bodyguard“the drug lord had his muscleman to protect him”
(n)muscleauthority or power or force (especially when used in a coercive way)“the senators used their muscle to get the party leader to resign”
(n)brawn, brawniness, muscle, muscularity, sinew, heftinesspossessing muscular strength

Verbs

(v)musclemake one's way by force“He muscled his way into the office”