de‧tec‧tive W3 [countable]
1SCP a police officer whose job is to discover information about crimes and catch criminals store detective
2 also private detectiveBO someone who is paid to discover information about someone or something:
She hired a detective to find out if her husband was having an affair.

detective work

efforts to discover information, find out how something works, answer a difficult question etc:
It took a lot of detective work to discover the cause of the problem.

detective story/novel etc

ALAMT a story etc about a crime, often a murder, and a detective who tries to find out who did it
WORD FOCUS: police WORD FOCUS: police
people in the police force: police officer, policeman, policewoman, detective, cop informal

the building where the police work: police station

what the police do: investigate crimes, find/collect evidence, arrest people who they think are guilty of a crime, question/interrogate people about crimes, hold/detain people in custody, charge people with crimes, release people if they are innocent

See also

Explore POLICE Topic