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

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

The driver remained at the scene and cooperated with investigators, authorities said. — Sacbee.com, 23 Oct. 2026

Lawson couldn’t tell investigators where exactly to look, police said. — Kendrick Calfee, Kansas City Star, 23 Oct. 2026

The officer who fired told investigators that the suspect pointed a gun at him, Cincinnati’s police chief has said. — ABC News, 23 Oct. 2026

Phrases Containing investigator

• private investigator