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WordNet-OnlineFree dictionary and thesaurus of English. Definitions, synonyms, antonyms and more...
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Noun investigator has 3 senses
research worker, researcher, investigator - a scientist who devotes himself to doing research--1 is a kind of scientist, man of science
 --1 has particulars: experimenter; boffin; fieldworker; postdoc, post doc
 
investigator - someone who investigates--2 is a kind of expert
 --2 has particulars:
 detective, investigator, tec, police detective - a police officer who investigates crimes--3 is a kind of policeman, police officer, officer
 --3 has particulars: dick, gumshoe, hawkshaw; plainclothesman; tracer
 
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