English · Slang Attested

spook

In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

An undercover agent, spy, or intelligence analyst.

Nghĩa · Tiếng Việt

điệp viên bí mật

Machine-translated — suggest a fix

Where it’s used: Used American English

Examples

From Ian Fleming to John Le Carre - authors have long been fascinated by the world of espionage. But, asks the BBC’s Gordon Corera, what do real life spooks make of fictional spies?

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Common questions

What does “spook” mean?

An undercover agent, spy, or intelligence analyst.

Is “spook” formal or informal?

spook is generally slang.

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