investigate
verb
in·ves·ti·gate
in-ˈve-stə-ˌgāt 
investigated; investigating
: to observe or study by close examination and systematic inquiry
: to make a systematic examination
especially
: to conduct an official inquiry
Examples of investigate in a Sentence
The police are still investigating the murder.
The accident was thoroughly investigated.
The manager promised to investigate when we pointed out an error on our bill.
He was investigated for his involvement in the incident.
Recent Examples on the Web
The monitor is investigating claims that Fain stripped Boyer of his responsibilities leading the union's Stellantis Department after Boyer refused to comply with a scheme that would benefit the family of Fain's fiancee.
—
Liam Rappleye, Freep.com, 22 July 2025
Statements issued by the Kentucky Jewish Council and the Chabad at UK Jewish Student Center also identify Woodcock as the professor who is being investigated.
—Killian Baarlaer, Louisville Courier Journal, 21 July 2025
The questions, answered anonymously, investigated dogs’ personalities and TV viewing habits, including the pets’ engagement level when animals were and were not on screen.
—Margherita Bassi, Smithsonian Magazine, 21 July 2025
The Florida Department of Law Enforcement is investigating the shooting.
—Grethel Aguila, Miami Herald, 21 July 2025
See All Example Sentences for investigate
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Liam Rappleye, Freep.com, 22 July 2025
Statements issued by the Kentucky Jewish Council and the Chabad at UK Jewish Student Center also identify Woodcock as the professor who is being investigated.
—Killian Baarlaer, Louisville Courier Journal, 21 July 2025
The questions, answered anonymously, investigated dogs’ personalities and TV viewing habits, including the pets’ engagement level when animals were and were not on screen.
—Margherita Bassi, Smithsonian Magazine, 21 July 2025
The Florida Department of Law Enforcement is investigating the shooting.
—Grethel Aguila, Miami Herald, 21 July 2025
See All Example Sentences for investigate
Cite this Entry
“Investigate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/investigate. Accessed 24 Jul. 2025.
Copy CitationKids Definition
investigate
verb
in·ves·ti·gate
in-ˈves-tə-ˌgāt
investigated; investigating
: to study by close examination and systematic inquiry
Etymology
from Latin investigare "to track, investigate," from in- "in, toward" and vestigium "footprint" — related to vestige
Word Origin
A detective investigating a crime may find the criminal by following clues. In much the same way, a hunter may find game by following tracks. The origins of the word investigate show how fitting it is to compare the detective to the hunter. The Latin word vestigium meant "footprint, track." Joined with the prefix in-, the noun vestigium gave rise to the verb investigare. This word meant both "to track or trace by footprints" and "to study or examine closely." Only the second meaning was kept when the verb was borrowed into English as investigate.
Legal Definition
investigate
verb
in·ves·ti·gate
in-ˈves-tə-ˌgāt
investigated; investigating
: to observe or study by close examination and systematic inquiry
specifically
: to make (a criminal suspect) the subject of inquiry and study for the purpose of establishing probable cause
: to make a systematic examination
especially
: to conduct an official inquiry
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