| APA | Smart Define. (-0001). upper circle thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/upper_circle/thesaurus/synonyms |
| Chicago | Smart Define. -0001. "upper circle thesaurus" https://smartdefine.org/upper_circle/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define -0001, upper circle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/upper_circle/thesaurus/synonyms>. |
| MLA | Smart Define. "upper circle thesaurus" 30 November -0001. Web. 22 September 2026. <https://smartdefine.org/upper_circle/thesaurus/synonyms> |