investigator
6 synonyms for investigator, grouped by meaning and by how common each one is.
Noun — A person whose job is to investigate something, such as a crime or accident.
Synonyms
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use investigator
The word patterns that sound natural to a native speaker.
private investigator
lead investigator
fire investigator
Etymology
Attested in the mid‐16th century; from Latin investigator, from investigare, equivalent to investigate + -or.
Full origin of investigator →Frequently asked questions
What does “investigator” mean?
The word “investigator” means a person whose job is to investigate something, such as a crime or accident. In plain terms, someone who professionally looks into facts and evidence.
How do you pronounce “investigator”?
“Investigator” is pronounced ihn-VEHS-tih-gay-tuh (/ɪnˈvɛs.tɪˌɡeɪ̯.təː/ in IPA).
How do you use “investigator” in a sentence?
Here is “investigator” used in a sentence: “A private investigator was hired to track down the missing heir.”
What part of speech is “investigator”?
“Investigator” is a noun.
Is “investigator” a common word?
“Investigator” is a fairly common word in modern English, usually learned at around the B2 level.
What is the difference between an "investigator" and a "detective"?
Investigator is a broad term for anyone whose job is to investigate something, such as a crime, accident, or fraud case, while detective specifically refers to a police officer trained to investigate crimes. Not all investigators are police detectives; many work in insurance, journalism, or private practice.
What does a "private investigator" do?
A private investigator is someone hired independently, outside law enforcement, to investigate matters such as infidelity, missing persons, or fraud on behalf of a client. This role differs from a police investigator, who works for a government agency.
What is the difference between an "investigator" and an "inspector"?
An investigator focuses on researching and gathering facts about a specific incident, such as a crime or accident, while an inspector typically examines whether something, like a building or a business, meets required standards. The two roles can overlap but serve different primary purposes.
