Synonyms for Muscle (same or very similar meaning)
WordNet sense 1 (a bully employed as a thug or bodyguard):
muscleman
WordNet sense 2 (one of the contractile organs of the body):
musculus
WordNet sense 3 (animal tissue consisting predominantly of contractile cells):
muscular tissue
WordNet sense 4 (possessing muscular strength):
brawn, brawniness, heftiness, muscularity, sinew
From the ODE community, based on WordNet
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