peacekeeping

noun

peace·​keep·​ing ˈpēs-ˌkē-piŋ How to pronounce peacekeeping (audio)
: the preserving of peace
especially : international enforcement and supervision of a truce between hostile states or communities
peacekeeper noun

Examples of peacekeeping in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The peacekeeping mission, known as UNIFIL, did not say who was responsible for the deaths overnight and into Monday. Lucia I Suarez Sang, CBS News, 31 Mar. 2026 The deaths mark the second fatal incident in two days involving the United Nations Interim Force in Lebanon, known as UNIFIL, a peacekeeping force established in 1978 and which later monitored cessation of hostilities between the two nations. Nabih Bulos, Los Angeles Times, 30 Mar. 2026 Of the State Department money, officials pulled $1 billion from international disaster assistance; $200 million from peacekeeping operations; and $50 million from international organizations and programs, the person familiar with the funding said. Eleanor Mueller, semafor.com, 26 Mar. 2026 Milshtein took that argument further, saying Hamas sees the model less as a peacekeeping mission than as a version of the Hezbollah-UNIFIL arrangement in Lebanon. Efrat Lachter, FOXNews.com, 16 Mar. 2026 See All Example Sentences for peacekeeping

Word History

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of peacekeeping was in 1910

Browse Nearby Words

Cite this Entry

“Peacekeeping.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peacekeeping. Accessed 4 Apr. 2026.

Kids Definition

peacekeeping

noun
peace·​keep·​ing ˈpē-ˌskē-piŋ How to pronounce peacekeeping (audio)
: the enforcing of a truce between countries or groups by an international military force

More from Merriam-Webster on peacekeeping

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster