| APA | Smart Define. (2011). word for word and letter for letter thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/word_for_word_and_letter_for_letter/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "word for word and letter for letter thesaurus" https://smartdefine.org/word_for_word_and_letter_for_letter/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2011, word for word and letter for letter thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/word_for_word_and_letter_for_letter/thesaurus/synonyms>. |
| MLA | Smart Define. "word for word and letter for letter thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/word_for_word_and_letter_for_letter/thesaurus/synonyms> |