incursion

American  

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

noun

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.

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incursion British  

/ ɪnˈkɜːsɪv, ɪnˈkɜːʃən /

noun

1. a sudden invasion, attack, or raid

2. the act of running or leaking into; penetration

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Other Word Forms

• incursive adjective

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; excursion

Example Sentences

Completely marginalized during the administration’s Venezuela incursion, she was not even being invited to the White House Situation Room to observe the operation.

From Salon • Mar. 22, 2026

At Tel Aviv’s Dizengoff Square, cafes are crowded with customers, ready on a moment’s notice to put down their coffee cups and file calmly toward the nearest bunker in the event of an air incursion.

From The Wall Street Journal • Mar. 15, 2026

But Aoun described it as a deliberate ambush set for Lebanon and its army, designed to draw the Israeli military into another incursion.

From BBC • Mar. 10, 2026

Now, the threat of an incursion by U.S. forces pushed Mexican authorities to take action, the source said.

From Los Angeles Times • Feb. 24, 2026

“You’ve probably heard about the incursion today. Two gorgons were swept into the river by this newcomer, Percy Jackson. Juno herself guided him here, and proclaimed him a son of Neptune.”

From "The Son of Neptune" by Rick Riordan

Related Words

• aggression
• attack
• foray
• infiltration
• inroad
• intrusion
• penetration
• raid