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- Thesaurus|55
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3 entries under expression topic. ×
| nut to crack | |
| sixty-four dollar question | |
| sixty-four thousand dollar question(noun, idiom, challenge, question) |
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| APA | Smart Define. (2015). mind-boggler thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mind-boggler/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "mind-boggler thesaurus" https://smartdefine.org/mind-boggler/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, mind-boggler thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mind-boggler/thesaurus/synonyms>. |
| MLA | Smart Define. "mind-boggler thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/mind-boggler/thesaurus/synonyms> |