- Definitions|0
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- Abbreviations|69
| billet doux(noun, expression, line, scratch) |
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| APA | Smart Define. (2011). fyi thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fyi/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "fyi thesaurus" https://smartdefine.org/fyi/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2011, fyi thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fyi/thesaurus/synonyms>. |
| MLA | Smart Define. "fyi thesaurus" 21 May 2011. Web. 21 September 2026. <https://smartdefine.org/fyi/thesaurus/synonyms> |