Phrase guide

three-letter agency

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

1

noun

Meaning 1

Any intelligence agency of the United States federal government.

Definition source: English Wiktionary via Wiktextract

Usage: US, humorous

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Any intelligence agency, regardless of nationality or allegiance.

Definition source: English Wiktionary via Wiktextract

Usage: US, broadly, humorous

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From the initialisms of major intelligence agencies in the United States, such as the CIA, FBI and NSA.