muscle muscle /ˈmʌsəl/

noun

1. () One of the contractile organs of the body  ( musculus , muscle )
   one of the contractile organs of the body
    The human body has over 600 muscles that work together to facilitate movement and maintain posture
   The human body has over 600 muscles that work together to facilitate movement and maintain posture
   
   
2. () Animal tissue consisting predominantly of contractile cells  ( muscular tissue , muscle )
   animal tissue consisting predominantly of contractile cells
   
3. Possessing muscular strength  ( brawn , brawniness , heftiness , muscle , muscularity , sinew )
   possessing muscular strength
   
4. Authority, power or force (especially when used in a coercive way)  ( muscle )
   authority, power or force (especially when used in a coercive way)
    The senators used their muscle to get the party leader to resign
   the senators used their muscle to get the party leader to resign
   
5. A bully employed as a thug or bodyguard  ( muscle , muscleman )
   a bully employed as a thug or bodyguard
    The drug lord had his muscleman to protect him
   the drug lord had his muscleman to protect him
   

verb

1. Make one's way by force  ( muscle )
   make one's way by force
    He muscled his way into the office
   He muscled his way into the office