muscle

noun

1
possessing muscular strength
2
authority or power or force (especially when used in a coercive way)
the senators used their muscle to get the party leader to resign
3
animal tissue consisting predominantly of contractile cells
4
one of the contractile organs of the body
5
a bully employed as a thug or bodyguard
the drug lord had his muscleman to protect him

Also useful for “muscle”:Unscrambler— Rearrange the letters in “muscle”