undercover

S3 W2

BrE /ˈʌndəkəvə/ AmE /ˌʌndərˈkoʊvər/

adjective / noun en → es

1 SECRET AGENT B2

working as a police officer or detective in secret, without showing your identity to the people you are investigating

en secreto, encubierto

  • be undercover

Collocations undercover agent · undercover operation

  • The police sent an undercover officer into the club.

    La policía envió a un agente encubierto al club.

2 HIDDEN B1

not shown or known about, but existing and affecting something

oculto, secreto

  • be undercover

Collocations undercover costs · undercover agenda

  • There are many hidden costs that aren't mentioned in the brochure.

    Hay muchos costos ocultos que no se mencionan en el folleto.