Phrase guide

private eye

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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1

noun

Meaning 1

A private personal detective, employed to gather information about someone.

Definition source: English Wiktionary via Wiktextract

Usage: idiomatic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

someone who can be employed as a detective to collect information

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: private detective, PI, private investigator, operative, shamus, sherlock

Antonyms: none provided

Broader terms: detective

Narrower terms: hotel detective, house detective, house dick, inquiry agent, store detective

History

Etymology

From private investigator and its abbreviation PI, through the homophonic term eye in place of "I", and the use of "eye" as a reference to surveillance.

Across languages

Translations

7 source translations are retained for this English entry.

  • Czech: soukromé očko — A private personal detective
  • Czech: soukromý detektiv — A private personal detective
  • Finnish: yksityisetsivä — A private personal detective
  • German: Privatdetektiv — A private personal detective
  • German: Schnüffler — A private personal detective
  • Polish: prywatny detektyw — A private personal detective
  • Swedish: privatdeckare — A private personal detective