special agent

American  

noun

1. an investigator in a law enforcement agency.

2. an insurance sales representative.

---

Etymology

Origin of special agent

An Americanism dating back to 1830–40

Example Sentences

Davis and Vandervelden were joined Tuesday by a special agent from the criminal investigations unit of Pirro’s office, Matthew Fox-Moles, according to the letter reviewed by the Journal.

From The Wall Street Journal • Apr. 14, 2026

Jennifer Runyan, FBI special agent in charge of the Detroit office, said the incident was "deeply, disturbing and tragic".

From BBC • Mar. 12, 2026

Specifically, his proximity to Robert Ressler, a special agent said to have come up with the term “serial killers,” and who spent much of his career speaking with them.

From Los Angeles Times • Mar. 2, 2026

FBI special agent Alex Doran said earlier Sunday that a motive for the attack was not known but "there were indicators on the subject and in his vehicle that indicate a potential nexus to terrorism."

From Barron's • Mar. 1, 2026

Becoming a special agent was his way of serving his country, he said.

From "Killers of the Flower Moon" by David Grann