IPA: /ɪnˈvɛstɪɡeɪtə/
KK: /ɪnˈvɛstɪˌɡeɪtər/
A person, often a detective, who examines and looks into details to find out information or solve a mystery.
The investigator gathered evidence to solve the case.
Investigator → It is formed from "in-" (meaning into) and "vestigare" (meaning to track or search). The word "investigator" refers to someone who searches into or tracks down information or evidence.
Think of someone who goes 'into' ('in-') a situation to 'track' ('vestigare') down the truth — that's what an investigator does.