incursion
noun
in·cur·sion
in-ˈkər-zhən 
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
But a Tribune review of court filings, databases and other public records detailing the scope of the incursion and the typical costs of its components begins to paint a clearer picture.
—
Chicago Tribune, 5 Jan. 2026
All of this made a military incursion possible.
—Steve Inskeep, NPR, 3 Jan. 2026
It was shattered in 2014 with Russia’s annexation of Crimea and incursions in eastern Ukraine, followed by the full-scale invasion of Ukraine almost four years ago, which sparked the deadliest conflict in Europe since World War II.
—Freddie Clayton, NBC news, 28 Dec. 2025
Kyiv has rejected that concession in return for security guarantees intended to protect Ukraine from future Russian incursions.
—Matthew Lee, Arkansas Online, 20 Dec. 2025
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Cite this Entry
“Incursion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/incursion. Accessed 13 Jan. 2026.
Kids Definition
incursion
noun
in·cur·sion
in-ˈkər-zhən
: a sudden usually temporary invasion : raid
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