as in incursion
a sudden attack on and entrance into hostile territory
the irruptions of the Goths into Italy in the fifth century
Synonyms & Similar Words
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Example Sentences
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Recent Examples of irruption
Orwell narrowed it down to the Edwardian era — 1901 to 1919 — long before the irruptions of two world wars and the Great Depression.
—
Michael Hiltzik, Los Angeles Times, 18 Apr. 2025
This is the largest owl irruption in Minnesota in two decades.
—Dan Kraker, Twin Cities, 9 Feb. 2025
An irruption is a sudden change in population density.
—San Diego Union-Tribune, 11 Feb. 2023
What is an irruption?
—Paul A. Smith, Journal Sentinel, 22 Nov. 2022
Michael Hiltzik, Los Angeles Times, 18 Apr. 2025
This is the largest owl irruption in Minnesota in two decades.
—Dan Kraker, Twin Cities, 9 Feb. 2025
An irruption is a sudden change in population density.
—San Diego Union-Tribune, 11 Feb. 2023
What is an irruption?
—Paul A. Smith, Journal Sentinel, 22 Nov. 2022
Recent Examples of Synonyms for irruption
Noun
-
Eastern members of the alliance, including Estonia, Poland, and Romania, recently reported incursions into their airspace, while drones that disrupted Danish airports are suspected of being linked to Russia.—
Tom Chivers,
semafor.com,
26 Sep. 2025
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The incident, which comes as tensions rise over recent Russian incursions into NATO countries’ airspace, marks the third time in roughly a month and the ninth time this year that NORAD has reported Russian aircraft flying near Alaska.—
Connor Greene,
Time,
25 Sep. 2025
Noun
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They are engaged in indirect conflict over Ukraine, whose defense against the ongoing Russian invasion NATO is supporting with materiel and training.—
Shane Croucher,
MSNBC Newsweek,
24 Sep. 2025
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As Russia’s full-scale invasion of Ukraine nears its fourth anniversary, a few of Fedorov’s allies have suggested expanding the bonus program in disturbing ways.—
Simon Shuster,
Time,
24 Sep. 2025
Noun
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The President has even threatened to arrest Mamdani, after the Democratic nominee vowed to push back on Immigration and Customs Enforcement raids.—
Chantelle Lee,
Time,
28 Sep. 2025
-
In June 2025, National Guard forces were also deployed to Los Angeles amid protests over immigration raids.—
Billal Rahman,
MSNBC Newsweek,
28 Sep. 2025
Cite this Entry
“Irruption.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/irruption. Accessed 1 Oct. 2025.
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