- Definitions|1
- Thesaurus|28
- Abbreviations|0
2 entries under expression topic. ×
| love letter(noun, line, letter) | |
| poison pen(line, letter) |
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| APA | Smart Define. (2011). billet doux thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/billet_doux/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "billet doux thesaurus" https://smartdefine.org/billet_doux/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2011, billet doux thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/billet_doux/thesaurus/synonyms>. |
| MLA | Smart Define. "billet doux thesaurus" 29 May 2011. Web. 23 September 2026. <https://smartdefine.org/billet_doux/thesaurus/synonyms> |