64 entries under investigate topic. ×

2
prowl(verb, follow, examine, pursue, look)
2
ransack(verb, action, beat, follow, examine)
2
search for(verb, expression, follow, examine, discover)
2
seek out(verb, expression, follow, pursue, seek)
1
action(dig, research, probe, burrow)
1
be after(verb, follow, pursue, seek)
1
be on the lookout(verb, examine, look, seek, search)
1
bird-dog(verb, cover, do, follow, catch)
1
bob for(verb, expression, follow, pursue)
1
comb(verb, follow, pursue, search)
1
delve for(verb, expression, follow, pursue)
1
dig(action, research, probe, burrow)
1
dig for(verb, expression, follow, pursue)
1
drag(verb, examine, look, seek)
1
dragnet(verb, follow, pursue, seek)
1
dredge(action, dig, research, probe)
1
examine(verb, action, look, seek, search)
1
fan(verb, follow, pursue, seek)
1
fish(verb, follow, pursue, search)
1
fish for(verb, expression, follow, examine, pursue)
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APASmart Define. (2015). ferret out thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/ferret_out/thesaurus/synonyms
ChicagoSmart Define. 2015. "ferret out thesaurus" https://smartdefine.org/ferret_out/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, ferret out thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/ferret_out/thesaurus/synonyms>.
MLASmart Define. "ferret out thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/ferret_out/thesaurus/synonyms>