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

Anwar Gargash, the diplomatic adviser to the UAE’s president, also cautioned against conspiracy theories as investigators look to establish the facts surrounding what happened. — Rhea Mogul, CNN Money, 2 Oct. 2026

In a statement Wednesday, Lafayette County Metro Narcotics, a department in the sheriff's office, stopped short of declaring that investigators found kratom itself near either student. — Adam Sabes, FOXNews.com, 2 Oct. 2026

The probable cause finding means investigators gathered enough evidence during their preliminary investigation to determine there could potentially be an ethical violation of state statutes. — Michelle Marchante, Miami Herald, 2 Oct. 2026

Using a coffee cup that Tanzer threw out, the investigators confirmed Tanzer’s DNA was found on Beatty’s dress. — Tim Stelloh, NBC news, 2 Oct. 2026

Phrases Containing investigator

• private investigator