meaning of investigate
1. To follow up step by step by patient inquiry or observation; to trace or track mentally; to search into; to inquire and examine into with care and accuracy; to find out by careful inquisition; as, to investigate the causes of natural phenomena.
2. To pursue a course of investigation and study; to make investigation.
3. conduct an inquiry or investigation of; "The district attorneys office investigated reports of possible irregularities"; "inquire into the disappearance of the rich old
">lady"