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undercover operation

undercover operation

10 5.0
Secret work by police or agents who hide their identity to gather evidence
  • noun
  • /ˌʌndərˈkʌvər ˌɑpəˈreɪʃən/
translation icon : operación encubierta
  • During the undercover operation, agents posed as buyers to gather evidence against the suspects.
  • run an undercover operation
  • launched an undercover operation
  • part of an undercover operation

I'm I'm at the yard and an undercover operation is coming to fruition.

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Examples

  • It will be an undercover operation.

    Fiction book (1998)
  • After a long-term joint investigation of drug trafficking between the Atlanta area and the Dalton metro area, an undercover operation was set up by an agent of the GBI and drug detectives with the Dalton Police Department.

    Blog text (23)
  • We're gonna be the only international undercover operation approved so far.

  • How long was this undercover operation of yours?

  • So what are you thinking, it's some sort of undercover operation gone wrong?

  • Can I talk to you, or are you in the middle of some kind of undercover operation?

  • I'm with Criminal Intelligence and not obliged to carry a warrant card, this is an undercover operation.

  • Adel Daoud, a U.S. citizen from the Chicago suburb of Hillside, was arrested Friday night in an undercover operation in which agents pretending to be extremists provided him with a phony car bomb.

    Blog text (26)
  • Narcotics detectives said Nemechek sold $175 worth of methamphetamine (3.1 grams) in an undercover operation on July 18 at his home, which is 670 feet from the Church of God on Placida Road.

    Blog text (15)
  • The police conducted an undercover operation to investigate the drug ring in the city.

Synonyms

sting
vsundercover operation
67 6.3

A hidden trick to catch or cheat people often run by police

is specifically a planned authoritative activity to gather evidence rather than any trick
sting operation
vsundercover operation
25 5.1

A secret police plan to trick people so they commit a crime and get arrested

is broader, focused on gathering evidence and information not only arrests
covert operation
vsundercover operation
23 5.7

A secret action by a government or army to avoid being noticed

is narrower, emphasizing law enforcement evidence gathering rather than any secret action
secret mission
vsundercover operation
17 5.5

A private job done secretly to gather information

focuses on concealed evidence gathering for authorities rather than broad espionage
undercover work
vsundercover operation
11 4.9

Secret work where someone gathers information for the police or security

is the standard operational term for the same law enforcement activity
intelligence operation
vsundercover operation
  • Specialized
8 4.9

A secret activity by a government to gather information about an enemy or threat

is similar in gathering information but is mainly used within law enforcement settings
covert mission
vsundercover operation
3 5.8

A secret operation by soldiers or spies to gather information and carry out dangerous tasks

is similar but limited to official attempts to collect evidence for law enforcement
clandestine operation
vsundercover operation
  • Formal
3 7.7

A secret activity planned and done to stay hidden, often by spies or soldiers

is more specific to police or authority investigations rather than general intelligence work
intelligence activity
vsundercover operation
  • Specialized
1 3.9

Actions to collect and study information about threats for military or security services

is narrower, referring to undercover acts that hide identity to collect evidence
black operation
vsundercover operation
  • Jargon
1 8.4

A secret action that hides who did it, often for political or military reasons

is publicly accountable activity aimed at evidence collection by official authorities

Antonyms

overt operation
  • Specialized
5.5

An activity by military or intelligence groups done openly, not secretly

How Covert

undercover operation
10 5.0
surveillance
  • Specialized
526 6.2

Surface Forms

Morphology

undercover + operation

Both constituents contribute directly to the overall meaning: 'undercover' denotes secrecy/hidden identity and 'operation' denotes a planned activity, so a B1 learner who knows both words can compose them to mean a covert/planned activity. This compositional pattern is common cross-linguistically (e.g. Spanish 'operación encubierta'), making the phrase immediately comprehensible rather than idiomatic or metaphorical.

Etymology

Undercover operation comes from the simple image of being under a cover, like someone hiding under a blanket or wearing a disguise so they are not seen. So an undercover operation is a 'secret' activity where agents hide their true identity to watch people and gather evidence.