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

Synonyms of incursion

• invasion
• raid

Examples of incursion in a Sentence

an incursion into enemy airspace

there were incursions from the border every summer

Recent Examples on the Web

Trump may threaten a land incursion to take key islands, or greater escalation in the air campaign. — Nick Paton Walsh, CNN Money, 17 July 2026

The provision, known as Section 815, would amount to an unprecedented incursion from the government into tens of thousands of companies that do business with the Pentagon, the groups wrote. — Garrett Downs, CNBC, 14 July 2026

Fire agencies across the state have for years warned the public to keep their drones grounded over active wildfires, yet drone incursions remain a constant problem, fire officials said. — Sydney Brammer, San Diego Union-Tribune, 11 July 2026

But Russia, the dominant outside power in Syria, also permitted a Turkish incursion into northern Syria in 2016 that targeted Kurdish groups seen as a threat by Ankara. — Scott Peterson, Christian Science Monitor, 9 July 2026

Word History

Etymology

Middle English, from Middle French or Latin; Middle French, from Latin incursion-, incursio, from incurrere

First Known Use

15th century, in the meaning defined at sense 1

Rhymes for incursion

• aspersion
• aversion
• conversion
• dispersion
• diversion
• eversion
• excursion
• immersion
• inversion
• perversion
• recursion
• reversion

Kids Definition

incursion

noun

in·​cur·​sion in-ˈkər-zhən 

: a sudden usually temporary invasion : raid