Muscle
Noun
UK
/ˈmʌsəl/
US
/ˈmʌsəl/
Definition
A body part that helps you move.
Example
"Your muscles help you move."
"If you exercise regularly, your muscles become stronger and help you stay healthy."
"She used all her muscle to move the heavy chair across the room."
Explanation
A muscle is a soft part inside your body that helps you move. You use muscles walk, lift things, smile, or breathe. For example, your arm muscles help you lift things. Your body has over 600 muscles, and they work together to help you stay active and strong. Muscles become stronger when you exercise, and they can feel tired or sore when you use them a lot. When a muscle becomes tight or painful, it is called a muscle cramp. The word can also describe physical strength, as in he used all his muscle to push the box.