13 entries under investigation topic. ×

20
reconnaissance(informal, noun, study, slang, search)
3
exploration(noun, study, search, examination)
3
scouting
2
survey(noun, verb, study, search, examination)
1
inspection(noun, study, search, examination)
1
scan(verb, scouting)
1
scrutiny(noun, study, search, examination)
0
maneuvers
0
probe(study, examine, search, examination, inspect)
0
recon
0
reconnoiter(study, examine, inspect, scouting)
0
review(study, examine, search, examination, inspect)
0
surveillance
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APASmart Define. (2015). recce thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/recce/thesaurus/synonyms
ChicagoSmart Define. 2015. "recce thesaurus" https://smartdefine.org/recce/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, recce thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/recce/thesaurus/synonyms>.
MLASmart Define. "recce thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/recce/thesaurus/synonyms>