English Reference

Word

intervene

Phoneticsin·ter·vene, stress on the third syllable

US/ˌɪntɝˈvin/

UK/ˌɪntəvˈiːn/

Definitions

01to get involved

B2 · Upper Intermediate Formal

v. to step into a situation or argument to help solve a problem or stop something bad from happening.

v. to intentionally become involved in a difficult situation in order to improve it or prevent it from worsening.

“The teacher had to intervene when the two students started shouting at each other.”

“The central bank decided to intervene in the currency markets to prevent a further collapse of the exchange rate.”

Usage

Often used with the preposition 'in'.

Synonyms

intercedestep inmediate

Antonyms

02time or events passing

C1 · Advanced Academic · Literary

v. to happen between two events or points in time.

v. to occur or exist between two events, periods, or points in time.

“Many years intervened between their first meeting and their eventual marriage.”

“In the decades that intervened between the two wars, the social fabric of the country underwent a radical transformation.”

Usage

Usually intransitive; the subject is typically the time or event that occurs between two points.

Synonyms

elapsepass

03to interrupt

C1 · Advanced Formal

v. to say something while other people are talking.

v. to interrupt a conversation or discussion, often to clarify a point or offer a different perspective.

“I'm sorry to intervene, but I think you have the wrong facts.”

“The chairman intervened to remind the speakers that they were straying from the main agenda of the meeting.”

Synonyms

interruptinterject

04legal involvement

C2 · Proficiency Law Technical · Formal

v. to join a legal case to protect your own rights, even if you were not part of it at the start.

v. to enter into a lawsuit as a third party for the protection of one's own interests.

“The insurance company sought to intervene in the case to protect its financial interests.”

“The court allowed the environmental group to intervene in the proceedings, recognizing their legitimate interest in the outcome of the land dispute.”

Usage

Typically used in civil litigation contexts.

Collocations

Common phrases and expressions where native English speakers use the word “intervene” in context.

Verb

01. intervene in the conflict

“International organizations were called upon to intervene in the conflict before the situation worsened.”

verb + prep + noun

02. intervene on behalf of the workers

“The union leader intervened on behalf of the workers to negotiate better safety protocols.”

verb + prep + noun

03. intervene to prevent a disaster

“Emergency services intervened to prevent a disaster after the chemical leak was reported.”

verb + infinitive

Preposition

04. intervene between the parties

“A neutral mediator was appointed to intervene between the parties during the legal proceedings.”

prep + noun

Adverb

05. decisively intervene

“The central bank decided to decisively intervene in the currency markets to stabilize the exchange rate.”

adv + verb

06. intervene directly

“The government was reluctant to intervene directly in the private sector's affairs.”

verb + adv

07. personally intervene

“The CEO had to personally intervene to resolve the dispute between the two department heads.”

adv + verb

Real-World Examples

“Previous requests from the Palestinian families to the Israeli military present at the site to intervene have not helped.”
UN News 13 Aug 2026
“Whilst it is welcome that the prime minister has intervened to review the policy, more now needs to be done to ensure the probation service can safely manage people in the community.”
The Guardian 11 Aug 2026

Etymology

Back-formation from intervention, and/or from Latin interveniō (“come between”, verb).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

VERB

intervene(C1)

Domain

Law

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Frequent
Level
C1 · AdvancedOxford
Updated

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