muscle

High (B1+)
UK/ˈmʌs.əl/US/ˈmʌs.əl/

Neutral to formal; extended metaphorical uses are common in journalism, business, and politics.

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Definition

Meaning

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.

Strength or power; also used metaphorically to refer to influence, authority, or a show of force, especially in a group or organizational context (e.g., political muscle).

Linguistics

Semantic Notes

The word has shifted from its original anatomical meaning (Latin 'musculus' meaning 'little mouse', perhaps from the shape of certain muscles) to encompass metaphorical meanings of strength, power, and influence. In plural form ('muscles'), it often refers to physical strength or physique.

Dialectal Variation

British vs American Usage

Differences

Spelling and some compound terms. The verb form 'to muscle in/out' is used in both, but slightly more common in AmE. The metaphorical use (e.g., 'political muscle', 'financial muscle') is equally common.

Connotations

In both, it can connote physical strength, effort, or coercive power. 'Muscle car' is strongly associated with American automotive culture.

Frequency

The term is highly frequent in both varieties. The spelling 'muscle' is universal; no variation like 'muscel' exists.

Vocabulary

Collocations

strong
pull a muscleflex one's musclesbuild musclemuscle memorystrain a musclepolitical muscle
medium
skeletal musclecardiac musclemuscle tissuemuscle strengthmuscle powermuscle fatigue
weak
major musclesore muscletense musclepowerful musclemuscle groupmuscle ache

Grammar

Valency Patterns

muscle + in/into (to force one's way into)muscle + out (to force someone out)muscle + through (to force something to happen)

Vocabulary

Synonyms

Strong

mightheftpotencyvigor (AmE) / vigour (BrE)

Neutral

strengthpowerforcebrawn

Weak

tissuesinewtendon (related but anatomically distinct)physique

Vocabulary

Antonyms

weaknessfrailtyimpotencepowerlessness

Phrases

Idioms & Phrases

  • muscle memory
  • not move a muscle
  • pull a muscle
  • flex one's muscles (metaphorical)
  • muscle in on something

Usage

Context Usage

Business

e.g., 'The company used its financial muscle to acquire the competitor.' (Metaphorical: power/influence)

Academic

e.g., 'The study examined the effects of ageing on skeletal muscle mass.' (Biological/anatomical)

Everyday

e.g., 'I've got a sore muscle in my back from gardening.' (Physical body part/ailment)

Technical

e.g., 'The contraction is initiated by an action potential in the muscle fibre.' (Medical/physiological)

Examples

By Part of Speech

verb

British English

  • He tried to muscle in on their family business.
  • The new regulations were muscled through parliament.

American English

  • The gang muscled out the local competition.
  • He muscled his way to the front of the queue.

adverb

British English

  • No standard adverbial form. 'Muscularly' is extremely rare/technical.
  • No standard adverbial form. 'Muscularly' is extremely rare/technical.

American English

  • No standard adverbial form. 'Muscularly' is extremely rare/technical.
  • No standard adverbial form. 'Muscularly' is extremely rare/technical.

adjective

British English

  • It was a muscle-bound action hero.
  • She suffered a muscle-wasting disease.

American English

  • He drives a classic muscle car.
  • The team lacks muscle memory for this play.

Examples

By CEFR Level

A2
  • My leg muscle hurts.
  • Dogs have strong muscles.
B1
  • You need to exercise to build muscle.
  • He pulled a muscle in his shoulder while playing tennis.
B2
  • The company used its economic muscle to influence the decision.
  • After the injury, it took months to rebuild the muscle strength in her arm.
C1
  • The activist group lacks the political muscle to effect change at a national level.
  • Critics accused the conglomerate of muscling in on the emerging market with predatory pricing.

Learning

Memory Aids

Mnemonic

Think of a MOUSE (from Latin 'musculus') running under your skin when a muscle twitches. Or: You need MUSCLE to MOVE a CYCLE.

Conceptual Metaphor

STRENGTH IS MUSCLE / POWER IS MUSCLE (e.g., 'show some muscle in the negotiations', 'the muscle behind the operation').

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with 'мускул' (musculus) which is a rarer, more scientific term. The common Russian equivalent is 'мышца'.
  • The verb 'to muscle in' does not translate directly to a single Russian verb; use phrases like 'внедриться силой', 'пролезть'.

Common Mistakes

  • Misspelling: 'mucle', 'musle'.
  • Incorrect plural for the body part: 'muscles' (correct).
  • Using 'muscle' as a countable noun for one single fiber: 'I pulled a muscle' is correct, but 'I pulled one muscle' is vague; better to specify: 'I pulled a calf muscle'.

Practice

Quiz

Fill in the gap
After years of weight training, he had developed considerable in his arms and back.
Multiple Choice

In which sentence is 'muscle' used metaphorically?

FAQ

Frequently Asked Questions

It can be both. As a body part, it's countable ('I pulled two muscles'). Referring to tissue or bulk, it's often uncountable ('He has a lot of muscle').

A muscle contracts to create movement. A tendon connects muscle to bone. A ligament connects bone to bone, stabilizing joints.

It means to force your way into a situation where you are not welcome or invited, often using power or threats, e.g., 'Large corporations muscled in on the small local market.'

The 'c' became silent in English pronunciation over time. This is a common historical sound change. Similar words include 'corpuscle' and 'arbuscle'.

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