English Reference

Word

invader

Phoneticsin·vad·er, stress on the second syllable

US/ˌɪnˈveɪdɝ/

UK/ɪnvˈeɪdɐ/

Definition

n. a person or group that enters a country or area without permission, usually to take control or cause trouble. You use this word when someone is attacking or taking over a place.

n. a person or group that enters a country or territory without authorization, typically with the intent to seize control or cause disruption. Often carries a political or military connotation.

Examples

“The army fought hard to stop the enemy invader.”

“The local community organized a protest to welcome the peaceful invader and ensure their safety.”

“Historians often debate whether the group was a legitimate refugee seeking asylum or a foreign invader seeking to exploit the region's natural resources.”

Examples

simple

“The army fought hard to stop the enemy invader.”

contextual

“The local community organized a protest to welcome the peaceful invader and ensure their safety.”

complex

“Historians often debate whether the group was a legitimate refugee seeking asylum or a foreign invader seeking to exploit the region's natural resources.”

Real-World Examples

“Books are, said Laiuk, certainly considered important by the Russians invaders.”
The Guardian 4 Oct 2026
“Among the most important immune cells involved in fighting such invaders are neutrophils.”
Phys.org 7 Sept 2026

Etymology

From invade + -er.

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

Word family

NOUN

invader(B2)

ADJECTIVE

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Occasional
Level
B2 · Upper Intermediate
Updated

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English Reference