1. (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 care and accuracy; to find out by careful inquisition; as, to investigate the causes of natural phenomena.
2. (v. i.) To pursue a course of investigation and study; to make investigation.
Thesaurus Entries
air, analyze, canvass, comment upon, consider, controvert, deal with, debate, deliberate, deliberate upon, delve into, dig into, discourse about, discuss, examine, exchange views, explore, fathom, go, go into, handle, indagate, inquire into, knock around, look into, pass under review, peer into, plumb, poke into, probe, pry, pry into, rap, reason, reason about, reason the point, research, review, scrutinize, search into, sift, sound, study, take up, talk, talk about, talk of, talk over, thresh out, treat, ventilate, winnow
