Synonyms of investigator

investigator

noun

in-ˈve-stə-ˌgā-tər 

1

as in researcher

one who observes or studies by close examination and systematic inquiry

investigators who discovered new evidence that the universe was much older than had been previously estimated

Synonyms & Similar Words

• researcher
• experimenter
• observer
• examiner
• monitor
• inspector
• fact finder
• empiricist
• empiric
• field-worker

2

as in detective

a person not on the police force who investigates criminal or illicit activity or searches for missing persons

the investigator in charge of the case was touted as an expert at tracing stolen art

Synonyms & Similar Words

• detective
• operative
• sleuth
• private investigator
• dick
• gumshoe
• private detective
• private eye
• sleuthhound
• shamus
• sherlock
• tracker
• tracer
• hawkshaw
• Federal
• tail
• plainclothesman
• narc
• fed
• shadow
• G-man

Example Sentences

Recent Examples of investigator

No attorney information was available and a motive was not immediately revealed by investigators. — Ivan Pereira, ABC News, 7 Nov. 2026

On Friday, Grossman thanked the NTSB for sending nearly 20 investigators to the site and urged people to listen to their instructions. — Zoey Thomas, Sun Sentinel, 6 Nov. 2026

If investigators establish its origin and identify property damage, the case could involve both Washington and Beijing. — Atharva Gosavi, Interesting Engineering, 24 Oct. 2026

Her supervisor told an FBI investigator that the then-26-year-old had sent him some concerning text messages and emails, according to an affidavit. — Harriet Ramos, Fort Worth Star-Telegram, 24 Oct. 2026

Phrases Containing investigator

• private investigator