| APA | Smart Define. (2011). big d thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/big_d/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "big d thesaurus" https://smartdefine.org/big_d/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2011, big d thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/big_d/thesaurus/synonyms>. |
| MLA | Smart Define. "big d thesaurus" 21 May 2011. Web. 22 September 2026. <https://smartdefine.org/big_d/thesaurus/synonyms> |