Pronunciation: /ˈʌndərˌkʌvər/
adjective used to describe someone or something that is working or operating secretly or undercover
A1 The detective went undercover to solve the case.
A2 The undercover agent was able to gather valuable information.
B1 The journalist worked undercover to expose the corruption.
B2 The undercover operation was successful in dismantling the criminal organization.
C1 The undercover investigation lasted for months before any arrests were made.
C2 The undercover officer had to maintain his cover even under extreme pressure.
adverb used to describe an action that is done secretly or in a hidden manner
A1 The detective went undercover to catch the thief.
A2 She worked undercover at the company to gather information for her investigation.
B1 The journalist went undercover to expose corruption within the government.
B2 The spy operated undercover for years without being detected.
C1 The undercover operation was successful in dismantling the criminal organization.
C2 The undercover agent's true identity was never revealed during the mission.
formal The detective went undercover to gather information on the criminal organization.
informal I heard that Sarah is going undercover for her latest assignment.
slang The cops are sending someone undercover to bust the drug ring.
figurative She felt like she was living undercover, hiding her true self from the world.
undercovered
undercovers
more undercover
most undercover
undercover
will undercover
have undercover
is undercover
undercover
undercover
to undercover
undercovering
undercovered