muscle

(noun) one of the contractile organs of the body. Synonyms: musculus.

(noun) animal tissue consisting predominantly of contractile cells. Synonyms: muscular tissue.

(noun) a bully employed as a thug or bodyguard. Synonyms: muscleman. Example: "The drug lord had his muscleman to protect him."

(noun) authority or power or force (especially when used in a coercive way). Example: "The senators used their muscle to get the party leader to resign."

(noun) possessing muscular strength. Synonyms: brawn, brawniness, muscularity, sinew, heftiness.

(verb) make one's way by force. Example: "He muscled his way into the office."