15 entries under expression topic. ×
| closed book(question, secret, puzzle, subtlety) | |
| sixty-four-thousand-dollar question(question, secret, puzzle, subtlety) | |
| tough nut to crack(idiom, question, secret, puzzle) | |
| nut to crack(idiom, secret) | |
| picture puzzle | |
| and what not(idiom, multiformity) | |
| confidential information(perplexity, abstruseness, inscrutableness) | |
| crux criticorum(idiom, secret) | |
| full tilt(idiom, activity) | |
| magic number(perplexity, abstruseness, inscrutableness) | |
| of every description(idiom, multiformity) | |
| privileged information(perplexity, abstruseness, inscrutableness) | |
| skeleton in cupboard(idiom, perplexity, abstruseness, inscrutableness) | |
| with haste(idiom, activity) | |
| with wings(idiom, activity) |
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| APA | Smart Define. (2015). rebus thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/rebus/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rebus thesaurus" https://smartdefine.org/rebus/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, rebus thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/rebus/thesaurus/synonyms>. |
| MLA | Smart Define. "rebus thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/rebus/thesaurus/synonyms> |