investigation
UK /ɪnˌvɛs.tɪˈɡeɪ.ʃən/ US /ɪnˌvɛs.tɪˈɡeɪ.ʃən/
noun 1
Definitions
noun
1
The act of investigating; the process of inquiring into or following up; research, especially patient or thorough inquiry or examination
The investigation into the crime has led to various leads as well as plenty of dead ends.
Despite thorough investigation, the perpetrator of the attacks remains unknown.
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