私人偵探 meaning in English

detective [detectives]▼(person employed to find information)
noun
[UK: dɪ.ˈtek.tɪv] [US: də.ˈtek.tɪv]

private detective▼(any agent hired by a private party for the purpose of investigation or evidence gathering)
noun
[UK: ˈpraɪ.vɪt dɪ.ˈtek.tɪv] [US: ˈpraɪ.vət də.ˈtek.tɪv]

private investigator▼(agent hired by a private party)
noun
[UK: ˈpraɪ.vɪt ɪn.ˈve.stɪ.ɡeɪ.tə(r)] [US: ˈpraɪ.vət ˌɪn.ˈve.stə.ˌɡe.tər]