muscle /ˈmʌs.əl/noun 5verb 2forms 3phrases 5 noun5 •the flesh that pulls on the bones when it gets shorter, so that people and animals can moveMuscle consists largely of actin and myosin filaments. •An organ composed of muscle tissue.His brow and hair and the palms of his hands were wet, and there was a kind of nervous contraction of his muscles. They seemed to ripple and string tense. — 1912 •(figurative) Strength, force.The widely-backed campaign to recall Evan Mecham as governor of Arizona gained even more muscle when the state House of Representatives voted to impeach the ultraconservative on February 5. — 1988 •[usually plural] A well-developed physique, in which the muscles are enlarged from exercise.The fact that I was middle-aged, bald, married, and raising girls instead of chasing them didn't really bother me. Muscles are cool at any age. — 2008 •(figurative) Hired strongmen or bodyguards.It was easy enough to dodge him, let him crash into the floorboards. Peltroc knew that his priority was the leader, not the hired muscle. — 1985 verb2 •To use force to make progress, especially physical force.He muscled his way through the crowd. •To move forcefully or with great strength.She muscled through the ruins. formsmuscled · muscling · muscles Phrases with muscle hired musclePerson who is hired or asked to perform tasks or duties requiring physical strength. love musclegenitals muscle inTo interfere, or intrude forcibly. muscle in onTo interfere with, or intrude on something forcibly. muscle upTo train the muscles for increased size and strength.