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incursion

American  
[in-kur-zhuhn, -shuhn] / ɪnˈkɜr ʒən, -ʃən /

noun

incursions plural
  1. a hostile entrance into or invasion of a place or territory, especially a sudden one; raid.

    The bandits made brief incursions on the village.

    Synonyms:
    attack, foray, sortie
  2. a harmful inroad.

  3. a running in.

    the incursion of sea water.


incursion British  
/ ɪnˈkɜːsɪv, ɪnˈkɜːʃən /

noun

  1. a sudden invasion, attack, or raid

  2. the act of running or leaking into; penetration

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Derived Forms

Inflected Forms

Nouns

Etymology

Origin of incursion

1400–50; late Middle English < Latin incursiōn- (stem of incursiō ) raid, equivalent to incurs ( us ) (past participle of incurrere to incur ) + -iōn- -ion; see excursion

Explanation

When an army crosses a border into another country for battle, they are making an incursion into enemy territory. An incursion is an invasion as well as an attack. Incursion can also be used to describe other things that rush in like an army such as an invasive species into a new region or floodwaters entering your home. When an airplane heads onto a runway it is not supposed to land on, risking airport safety, it is known as a runway incursion. And an incursion of cold air could make September feel like December.

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Vocabulary lists containing incursion

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And Alien Rogue Incursion, based on the classic sci-fi series, sees players navigate a wrecked spacecraft, trying to avoid one of the iconic xenomorphs.

From BBC • May 31, 2024

Kamala also gains approval from Captain Marvel herself after fighting alongside the Avengers amid a cosmic Incursion.

From Salon • Jun. 7, 2022

Adrian Veidt regains the wealth he lost in the aftermath of the Dimensional Incursion Event by licensing the technology to clone pets.

From Slate • Dec. 16, 2019

Thou wilt see a funny passage, and yet a true History, of George Dyer's Aquatic Incursion, in the next "London."

From The Works of Charles and Mary Lamb — Volume 6 Letters 1821-1842 by Lamb, Mary

"But you give Medart credit for ending the Sandeman Incursion; I understood it took five Rangers."

From A Matter of Honor A Terran Empire novel by Wilson, Ann

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