Sentence:  It all seemed - if one could have peeked in at him through one of his windows - as though this broken nosed man with the <WSD>muscular</WSD> arms and wrestler 's neck was merely the caretaker trying his hand at the boss 's work . 
Meaning of the word marked with <WSD> tags:  having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer