Muscle
noun, の adjective
Your muscle meat is your muscle.
きんにく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
毎日七時に仕事を終え、筋肉を鍛えるために帰り道にジムに寄ります。
I leave work at 7 p.m. every day and then stop by the gym on my way home to develop my muscles.