D defs.my
Entry 2 senses · 2 variants Webster, 1913

Investigate

/ĭnˌ-vĕs'-təg-ātˌ/ · In·ves·ti·gate · IPA /[ɪnˈvɛs.tɪ.ɡeɪ̯t]/
01 v. t. 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 c…
imp. & p. p. Investigated; p. pr. & vb. n. Investigating
  1. 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.
02 v. i. To pursue a course of investigation and study; to make investigation.
  1. 1.
    To pursue a course of investigation and study; to make investigation.