Synonyms of 'detective'
investigatorDictionary, cop (slang) , copper (slang)
Detectives are appealing for witnesses.
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An investigator is someone who carries out investigations, especially as part of their job.
'She was badly beaten,' said one investigator.
Thesaurus for detective from the Collins English Thesaurus
A detective is someone whose job is to discover what has happened in a crime or other situation and to find the people involved. Some detectives work in the police force and others work privately.