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English definition of “muscle”

muscle

noun [C/U]  /ˈmʌs·əl/ us  
biology a mass of tissue in the body, often attached to bones, that can tighten and relax to produce movement Muscle is also the power to do things or to make people behave in a certain way: [U] Republicans are flexing some political muscle.

muscle

verb [always + adv/prep]  /ˈmʌs·əl/ us  
to force your way into a place or situation: [T] Starks muscled his way to the basket. [I] Amanda muscled in on our meeting.
(Definition of muscle from the Cambridge Academic Content Dictionary © Cambridge University Press)
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