354 entries under noun topic. ×

11
contest(verb, consider, oppose, fight)
11
mystery(trouble, issue, challenge, doubt)
11
probe(verb, study, check, consider)
10
difficulty(trouble, worry, issue, dislike)
10
grill(verb, check, examine, challenge)
10
poll(verb, review, request, examination)
10
protest(verb, pass, difficulty, issue)
9
demur(verb, dispute, difficulty, stick)
9
dubiousness(certain, lack)
9
petition(verb, order, go, force)
9
suspicion(verb, certain, request, doubt)
9
theme(point, difficulty, issue, idea)
8
demand(verb, order, get, go)
8
doubtfulness(certain, doubt, uncertainty, lack)
8
head(point, issue, idea, material)
8
interrogatory(law, review, request, examination)
8
riddle(difficulty, secret, puzzle, obscurity)
8
test(verb, study, get, check)
8
uncertainty(issue, certain, request, doubt)
7
focus(activity, act, interest, concentrating)
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APASmart Define. (2016). question thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/question/thesaurus/synonyms
ChicagoSmart Define. 2016. "question thesaurus" https://smartdefine.org/question/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, question thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/question/thesaurus/synonyms>.
MLASmart Define. "question thesaurus" 8 March 2016. Web. 25 September 2026. <https://smartdefine.org/question/thesaurus/synonyms>