198 entries under check topic. ×

3
grill(verb, examine, challenge, demand)
3
poke into(verb, expression, examine, look)
3
pore over(verb, expression, study, separate)
3
pump(verb, examine, challenge, demand)
3
quest(verb, follow, examine, challenge)
3
rummage(verb, action, sound, examine)
3
scour(verb, study, sound, examine)
3
size up(verb, expression, study, consider)
2
give the third degree(verb, expression, idiom, examine)
2
bug
2
candle(study, consider, correct, examine)
2
chew over(expression, study, consider, favor)
2
confirm(verb, consider, correct, examine)
2
criticize(verb, study, consider, observe)
2
experiment with(verb, expression, taste, examine)
2
eyeball(verb, study, consider, see)
2
ferret(verb, sound, examine, look)
2
forage(verb, examine, look, seek)
2
go over with a fine-tooth comb(verb, expression, idiom, study)
2
grub(verb, turn, produce, clean)
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APASmart Define. (2016). investigate thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/investigate/thesaurus/synonyms
ChicagoSmart Define. 2016. "investigate thesaurus" https://smartdefine.org/investigate/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, investigate thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/investigate/thesaurus/synonyms>.
MLASmart Define. "investigate thesaurus" 17 February 2016. Web. 28 September 2026. <https://smartdefine.org/investigate/thesaurus/synonyms>