detective /dɪˈtɛktɪv/noun 3verb 2adjective 1forms 3phrases 1 noun3 •a police officer whose work is to gather facts and evidence to solve crimesHe worked as a detective with the agency for five years. •A person employed to find information not otherwise available to the public. •(rare) A work of detective fiction.Read books that are of interest to you (no matter what kinds of, I, for instance, read detectives, help a lot), try not to use Engl-Russ. Dict. while reading; […] — 1997 verb2 •(informal) To be or act as or like a detective.The terminal server manager has to go detectiving around every so often collecting up these ``idle osf users and manually log out their ports on the terminal server. — 1995 •(informal) To investigate or find information about (someone or something) as or like a detective.It's a response to his challenge when I asked where "up here" is. So I'm going to tell him _exactly_ where "up here" is as soon as I have "detectived" it. — 2001 adjective1 •Employed in detecting. formsdetectived · detectiving · detectives Phrases with detective detective workInvestigative research.