| APA | Smart Define. (-0001). to the best of our knowledge thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/to_the_best_of_our_knowledge/thesaurus/synonyms |
| Chicago | Smart Define. -0001. "to the best of our knowledge thesaurus" https://smartdefine.org/to_the_best_of_our_knowledge/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define -0001, to the best of our knowledge thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/to_the_best_of_our_knowledge/thesaurus/synonyms>. |
| MLA | Smart Define. "to the best of our knowledge thesaurus" 30 November -0001. Web. 21 September 2026. <https://smartdefine.org/to_the_best_of_our_knowledge/thesaurus/synonyms> |