| APA | Smart Define. (2013). second edition thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/second_edition/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "second edition thesaurus" https://smartdefine.org/second_edition/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2013, second edition thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/second_edition/thesaurus/synonyms>. |
| MLA | Smart Define. "second edition thesaurus" 18 May 2013. Web. 20 September 2026. <https://smartdefine.org/second_edition/thesaurus/synonyms> |