in·​cur·​sion | \ in-ˈkər-zhən \

Definition of incursion

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

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Examples of incursion in a Sentence

an incursion into enemy airspace there were incursions from the border every summer

Recent Examples on the Web

Since my departure, ASU’s faculty senate has mostly submitted to these incursions. Valerie Strauss, Washington Post, "Professor: A disturbing story about the influence of the Koch network in higher education," 22 Apr. 2018 Galilee has been subject to missile attacks and terrorist incursions from the north for as long as Israelis have been here. Noga Tarnopolsky,, "The bucolic north of Israel is relatively peaceful for now. But the specter of war is looming," 2 Mar. 2018 Brands that haven’t faced DTC incursions yet almost certainly will. Nat Ives, WSJ, "How to Stay Creative, and Other Challenges Facing Marketers in 2019," 28 Dec. 2018 Staff are beginning to use predictive analytics to anticipate incursions; poachers are creatures of habit. Helena Pozniak, Popular Mechanics, "The Technology That Will Finally Stop Poachers," 26 Nov. 2018 The incursion has overwhelmed social services and led to homeless families sleeping in the streets amid rising crime and prostitution, among other concerns. Samuel Chamberlain, Fox News, "Judge orders Brazil to close border to Venezuelan immigrants," 6 Aug. 2018 At the same time, Republicans are trying to prevent a Democratic incursion into more conservative districts, where running on Trump’s immigration agenda could boost their appeal. Sean Sullivan, The Seattle Times, "Divided Democrats struggle to answer Trump’s claims on migrant caravan," 23 Oct. 2018 The incursion of humans into wildlife habitats is increasing the crossover of zoonotic diseases (like Ebola) from animals into people. Ron Klain, Vox, "A pandemic killing tens of millions of people is a real possibility — and we are not prepared for it," 15 Oct. 2018 Jam’s winning bid was widely seen at the time as a defensive move to counter the incursions into the city by such rivals as Live Nation and MSG Entertainment. Chris Jones,, "Uptown Theatre will be restored: $75 million plan unveiled for grand palace on North Side," 28 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'incursion.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of incursion

15th century, in the meaning defined at sense 1

History and Etymology for incursion

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

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Statistics for incursion

Last Updated

19 Jan 2019

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Time Traveler for incursion

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

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English Language Learners Definition of incursion

: a sudden invasion or attack : an act of entering a place or area that is controlled by an enemy

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Comments on incursion

What made you want to look up incursion? Please tell us where you read or heard it (including the quote, if possible).


to gather or build up little by little

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