investigator

Meanings

1. 1
   noun

   A person who examines something carefully to find out the facts.

   The investigator spent weeks collecting evidence about the case.

2. 2
   noun

   A police officer whose job is to investigate crimes.

   A senior investigator was assigned to lead the murder case.

3. 3
   noun

   A scientist who devotes their time to doing research.

   The lead investigator published the results of the study.

Common collocations

• principal investigator Adjective + noun

Attested in the mid‐16th century; from Latin investigator, from investigare, equivalent to investigate + -or.

Topics

External links

• Cambridge Dictionary
• Wiktionary
• Google Images