14 entries under expression topic. ×

6
police detective(noun, idiom)
6
private detective(noun, idiom, person, agent)
6
research worker(noun, idiom, scientist)
5
private eye(noun, idiom, person, gumshoe)
1
double agent(noun, plant, agent, operative)
1
espionage agent(noun, plant, agent, operative)
1
foreign agent(noun, plant, agent, operative)
1
inside agent(noun, plant, agent, operative)
1
secret agent(noun, plant, agent, operative)
1
secret service(noun, plant, agent, operative)
1
undercover agent(noun, plant, agent, operative)
0
claim agent
0
scrutator scrutineer scrutinizer(idiom, inquiry)
0
talk-show host(noun, examiner, questioner)
10 years ago|7k views|share |citing 
APASmart Define. (2015). investigator thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/investigator/thesaurus/synonyms
ChicagoSmart Define. 2015. "investigator thesaurus" https://smartdefine.org/investigator/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, investigator thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/investigator/thesaurus/synonyms>.
MLASmart Define. "investigator thesaurus" 17 December 2015. Web. 26 September 2026. <https://smartdefine.org/investigator/thesaurus/synonyms>