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"an undercover investigation"adjectiveconducted with or marked by hidden aims or methods
Similar:
Definition that contains undercover
- cover a false identity and background (especially one created for an undercover agent)
- noc an undercover agent who is given no official cover
- sting operation a complicated confidence game planned and executed with great care (especially an operation implemented by undercover agents to apprehend criminals)
- shoofly an undercover police officer who investigates other policemen
- buy-and-bust operation an undercover operation by narcotics detectives to catch unsuspecting drug dealers