muscle
The German word 'Muskel' translates to the English word 'muscle'. In German, 'Muskel' is used in the same way as in English to refer to the tissue in the body that contracts to produce movement. It can also be used metaphorically, such as in the phrase 'jemandem fehlt der Muskel', which means 'someone lacks the muscle' or 'someone is weak'.
I pulled a muscle in my arm.
This phrase is used when someone damages their muscle by stretching it too much or by overexerting it, usually causing a great deal of pain.
He has impressive muscles.
This phrase is used to comment on the muscular build or physique of someone, often implying that the person is very fit or strong.
A muscle needs protein to grow.
This statement outlines the basic nutritional principle in biology that proteins are essential for muscle growth and repair.