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
In the past year there have been 12 drone incursions at New York State prisons, including in March when a drone dropped contraband into the yard of a correctional facility.
—
Pat Ryan, New York Daily News, 28 Apr. 2026
In April 2025, North Korea and Russia announced that their soldiers fought together to repel a Ukraine incursion into Russia’s Kursk border region.
—ABC News, 26 Apr. 2026
The moral injury from which hip-hop could not heal, in his mind, was the incursion of capitalism, the selling out, the culture-vulture turn that Bambaataa spoke to and spoke to freely.
—Doreen St. Félix, New Yorker, 25 Apr. 2026
The marks, which are sandwiched between towers once used to scout for armies and to allow archers and other artillery-throwers to fend off enemy incursions, are arrayed in a way that suggests they may have been left by a repeating dart-thrower called a polybolos.
—Taylor Mitchell Brown, Scientific American, 20 Apr. 2026
See All Example Sentences for incursion
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Pat Ryan, New York Daily News, 28 Apr. 2026
In April 2025, North Korea and Russia announced that their soldiers fought together to repel a Ukraine incursion into Russia’s Kursk border region.
—ABC News, 26 Apr. 2026
The moral injury from which hip-hop could not heal, in his mind, was the incursion of capitalism, the selling out, the culture-vulture turn that Bambaataa spoke to and spoke to freely.
—Doreen St. Félix, New Yorker, 25 Apr. 2026
The marks, which are sandwiched between towers once used to scout for armies and to allow archers and other artillery-throwers to fend off enemy incursions, are arrayed in a way that suggests they may have been left by a repeating dart-thrower called a polybolos.
—Taylor Mitchell Brown, Scientific American, 20 Apr. 2026
See All Example Sentences for incursion
Cite this Entry
“Incursion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/incursion. Accessed 1 May. 2026.
Copy CitationKids Definition
incursion
noun
in·cur·sion
in-ˈkər-zhən
: a sudden usually temporary invasion : raid
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