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

The town had flooding in two main areas along Tiburon Boulevard, as well as some water incursion downtown. —Steven Rosenfeld, Mercury News, 12 Jan. 2026

But what has transpired in practice is that cops are sorely missed during ICE incursions. —The Editorial Board, Chicago Tribune, 11 Jan. 2026

Drone incursions, sabotage and the vulnerability of nuclear reactors to attack are turning Europe into a dangerous flashpoint. —Chicago Tribune, Twin Cities, 9 Jan. 2026

Chavez argued the regime’s incursion in drug trafficking was necessary to help the FARC take power in Colombia, which borders Venezuela. —Jay Weaver january 8, Miami Herald, 8 Jan. 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