| credentials(noun, information, reason, picture, evidence) | |
| criterion(noun, information, reason, picture, evidence) | |
| crossword puzzle | |
| knotty point | |
| lowdown(noun, information, reason, picture, evidence) | |
| mark(noun, purpose, planned) | |
| meaning(noun, purpose, planned) | |
| mind-boggler | |
| mindboggler(difficulty, question, secret, puzzle, obscurity) | |
| necessity(noun, start) | |
| nut to crack(expression, idiom) | |
| occult(difficulty, question, secret, puzzle, obscurity) | |
| on what account(expression, idiom) | |
| oracle(difficulty, question, secret, puzzle, obscurity) | |
| absolutely | |
| accessory | |
| accordingly | |
| adapt | |
| agree | |
| assure |
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| APA | Smart Define. (2016). why thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/why/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "why thesaurus" https://smartdefine.org/why/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, why thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/why/thesaurus/synonyms>. |
| MLA | Smart Define. "why thesaurus" 2 February 2016. Web. 23 September 2026. <https://smartdefine.org/why/thesaurus/synonyms> |