a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body, physical power; strength

no muscle, put some muscle into, have a muscle on someone

flex one's muscles, muscle memory, muscle in on

Formal and Informal Expressions of muscle

In different contexts, you can replace 'muscle' with suitable alternatives. In a more formal setting, 'tissue' is apt. In informal speech or writing, 'brawn, power' is a commonplace synonym.

muscle: Explore its Definition & Usage

muscle Definition

1a band or bundle of fibrous tissue in a human or animal body that has the ability to contract, producing movement in or maintaining the position of parts of the body
2physical power; strength

Using muscle: Examples

Take a moment to familiarize yourself with how "muscle" can be used in various situations through the following examples!

Example
He pulled a muscle in his leg while running.
Example
She has well-defined arm muscles from lifting weights.
Example
The heart is a muscle that pumps blood throughout the body.
Example
The athlete's muscles bulged as he lifted the heavy weights.

muscle Synonyms and Antonyms

Synonyms for muscle

Antonyms for muscle

Idioms Using muscle

no muscle
lacking in physical strength or power
Example
He may be smart, but he has no muscle to back up his ideas.
put some muscle into
to apply more effort or force to achieve something
Example
If you want to finish the project on time, you'll need to put some muscle into it.
have a muscle on someone
to have influence or control over someone
Example
The boss has a muscle on everyone in the office.

Phrases with muscle

flex one's muscles
to show off one's strength or power
Example
The new CEO flexed her muscles by making some bold decisions.
muscle memory
the ability to reproduce a particular movement without conscious thought, acquired as a result of frequent repetition of that movement
Example
After practicing the dance routine for weeks, it became muscle memory and she could perform it effortlessly.
muscle in on
to force oneself into a situation or activity without being invited or welcome
Example
He tried to muscle in on our conversation, but we ignored him.

Origins of muscle

from Latin 'musculus', meaning 'little mouse', because of the resemblance of some muscles to mice

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Summary: muscle in Brief

The term 'muscle' [ˈmʌsl] refers to fibrous tissue that can contract, producing movement or maintaining body position. It also denotes physical power and strength. Examples include pulling a muscle while running and having well-defined arm muscles from lifting weights. Phrases like 'flex one's muscles' and 'muscle memory' extend its usage, while idioms like 'no muscle' and 'put some muscle into' highlight its figurative meanings.