Sinew is a noun that refers to a strong and flexible tissue, also known as tendons, that connects muscle to bone in a human or animal body. It is responsible for transmitting the force generated by muscles to the bones, allowing for movement and exertion of raw power.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Brawn. Explanations are generated by AI and may be inaccurate.