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uncouple

C1
UK/ʌnˈkʌp(ə)l/US/ˌənˈkəp(ə)l/

Formal / Technical

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Definition

Meaning

To disconnect or separate things that were joined or linked together.

To end a relationship, partnership, or connection; to detach or disengage.

Linguistics

Semantic Notes

Often implies a deliberate or mechanical separation of linked parts or systems. Can be used literally (physical disconnection) or figuratively (ending relationships).

Dialectal Variation

British vs American Usage

Differences

Usage is broadly similar. Slightly more common in technical/rail contexts in UK English.

Connotations

Neutral to formal. In UK, strong association with railway carriages.

Frequency

Low frequency in both varieties. More common in written technical or formal contexts than speech.

Vocabulary

Collocations

strong
uncouple the carriagesuncouple the traileruncouple the componentsuncouple the relationship
medium
uncouple the concept fromuncouple growth fromuncouple the system
weak
uncouple the ideauncouple the connectionuncouple the link

Grammar

Valency Patterns

uncouple A from Buncouple the two partsbe uncoupled

Vocabulary

Synonyms

Strong

disengagedecoupleunhook

Neutral

disconnectseparatedetach

Weak

splitdividesever

Vocabulary

Antonyms

coupleconnectattachlinkjoin

Phrases

Idioms & Phrases

  • “uncouple the engine”
  • “uncouple from reality”

Usage

Context Usage

Business

Used when discussing separating business units or decoupling financial metrics.

Academic

Common in sociology, economics, and engineering to describe separating variables or systems.

Everyday

Rare in casual conversation; mostly used for physical disconnection of trailers or carriages.

Technical

Frequent in engineering, rail transport, and systems design.

Examples

By Part of Speech

verb

British English

  • The driver will uncouple the rear carriages at the next station.
  • They decided to uncouple their business interests.

American English

  • We need to uncouple the trailer before parking.
  • The study aims to uncouple economic growth from resource use.

adverb

British English

  • The systems ran uncoupled for several hours.
  • They operated uncoupled from the main network.

American English

  • The modules function uncoupled from the core.
  • The data was processed uncoupled from real-time inputs.

adjective

British English

  • The uncoupled wagons rolled gently into the siding.
  • An uncoupled approach to policy is needed.

American English

  • The uncouple mechanism is safety-critical.
  • They lived uncoupled lives after the separation.

Examples

By CEFR Level

B1
  • The worker uncoupled the train cars.
  • Can you uncouple these two pipes?
B2
  • The company plans to uncouple its media division from the parent group.
  • It's difficult to uncouple emotion from such decisions.
C1
  • The researcher sought to uncouple the variables of age and experience.
  • Modern economies have uncoupled productivity gains from employment growth.

Learning

Memory Aids

Mnemonic

Think of a couple breaking up – they UN-COUPLE.

Conceptual Metaphor

CONNECTION IS A PHYSICAL LINK / RELATIONSHIPS ARE MECHANICAL ATTACHMENTS

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Avoid direct calque 'расцеплять' for figurative use; better 'разъединять', 'разделять'.
  • Don't confuse with 'развестись' (to divorce) – 'uncouple' is broader.

Common Mistakes

  • Using 'uncouple' for temporary separation (use 'disconnect' instead).
  • Using it as a noun (incorrect: 'an uncouple'; correct: 'a decoupling').

Practice

Quiz

Fill in the gap
Before servicing, you must first the engine from the transmission.
Multiple Choice

In which context is 'uncouple' most naturally used?

FAQ

Frequently Asked Questions

Very similar. 'Decouple' is more common in technical/abstract contexts (economics, physics). 'Uncouple' often implies a physical or deliberate separation.

Yes, but formally or metaphorically (e.g., 'uncouple their careers'), not for casual dating. 'Split up' or 'break up' are more natural for relationships.

'Couple' (verb) meaning to connect or link. Also 'connect', 'attach', 'link'.

Not in everyday conversation. It's a formal or technical word (engineering, rail, academic writing).