noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of intervention in some troubled situation. countable, uncountable

Etymology

Blend of inter- + invasion.

Related phrases

armed forces

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.