incursion

noun

in·​cur·​sion in-ˈkər-zhən How to pronounce incursion (audio)
Synonyms of incursionnext
1
: a hostile entrance into a territory : raid
2
: an entering in or into (something, such as an activity or undertaking)
his only incursion into the arts

Examples of incursion in a Sentence

an incursion into enemy airspace there were incursions from the border every summer
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.
There’ve been at least two other New York City sewer incursions since Jakupovic’s encounter, both in Brooklyn last week. David K. Li, NBC news, 2 June 2026 Israel has increased strikes and incursions deeper into Lebanon, while Hezbollah is targeting the Israeli military deployed in southern Lebanon and the civilian population in northern Israel. Asher Kaufman, The Conversation, 1 June 2026 Israeli forces seized a 12th-century Crusader castle in southern Lebanon, as Israel intensifies its farthest incursion into the country in 26 years, despite a nominal ceasefire. Brendan Ruberry, semafor.com, 31 May 2026 The Israeli military has captured a strategic, Crusader-era castle in southern Lebanon, as Prime Minister Benjamin Netanyahu ordered troops to deepen Israel’s incursion into its neighbor’s territory. Kareem El Damanhoury, CNN Money, 31 May 2026 See All Example Sentences for incursion

Word History

Etymology

Middle English, from Middle French or Latin; Middle French, from Latin incursion-, incursio, from incurrere

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of incursion was in the 15th century

Browse Nearby Words

Cite this Entry

“Incursion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/incursion. Accessed 4 Jun. 2026.

Kids Definition

incursion

noun
in·​cur·​sion in-ˈkər-zhən How to pronounce incursion (audio)
: a sudden usually temporary invasion : raid

More from Merriam-Webster on incursion

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