English Reference
noun

guerrilla

n.
US /ɡɝˈɪɫə/ UK /ɡɛɹˈɪlɐ/ guer·ril·la UK spelling guerrilla's, guerrilla's

  1. 01 B2 Upper Intermediate

    a soldier in a small, independent group that fights a larger, official army using surprise attacks.

    a member of an irregular, usually indigenous, armed force that fights a stronger, conventional military through sabotage and harassment.

    Simple

    The guerrillas hid in the mountains and attacked the supply trucks at night.

    In context

    The government forces struggled to contain the guerrillas, who utilized their knowledge of the dense jungle to launch effective hit-and-run operations.

During the past several decades, it has been celebrated to ensure that they are not caught in the crossfire between the guerrillas and the military.

Aeon· 20 Aug 2026

Was it a mistake for 99 Colombian guerrillas to lay down their arms?

The Guardian· 29 Aug 2026

Borrowed from Spanish guerrilla, diminutive of guerra (“war”), coined during the Peninsular War.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level C1 · Advanced
Frequency Frequent
Updated