English Reference

Word

peacekeeping

Phoneticspeace·keep·ing, stress on the first syllable

US/ˈpiˌskipɪŋ/

UK/pˈiːskiːpɪŋ/

Definitions

01maintaining a truce

B2 · Upper Intermediate Uncountable noun

n. the work of preventing fighting between groups that have been at war, often done by international soldiers.

n. the act of preserving peace between hostile groups or states, specifically through the deployment of sanctioned international military or police forces.

“The United Nations has been involved in peacekeeping in the region for over a decade.”

“Successful peacekeeping requires not only a military presence but also a sustained commitment to diplomatic negotiations and local infrastructure development.”

Usage

Usually uncountable; often refers to United Nations operations.

Synonyms

peace maintenanceconflict resolution

02related to keeping peace

B2 · Upper Intermediate

adj. describing a group or mission whose job is to keep the peace.

adj. relating to or performing the duties of maintaining a truce between hostile factions.

“The country sent two thousand peacekeeping troops to help stop the violence.”

“The peacekeeping mission faced significant challenges due to the lack of a clear mandate from the security council.”

Usage

Always used before a noun.

Antonyms

Collocations

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

01. peacekeeping mission

Real-World Examples

“Right now, the UN peacekeeping mission maintains more than 12,000 peacekeepers.”
UN News 20 Oct 2026
“UNOWAS is a special political mission rather than a peacekeeping operation.”
Al Jazeera 21 Sept 2026
“I have many friends inside the machine - well-meaning UN officials, peacekeeping soldiers and medics.”
BBC 17 Oct 2014

Etymology

From peace + keeping, after keep the peace.

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

Word family

ADJECTIVE

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.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL 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: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Occasional
Level
B2 · Upper Intermediate
Updated

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