- Definitions|1
- Thesaurus|314
- Abbreviations|0
5 entries under supplementary topic. ×
| extra(noun, adjective, increase, addition, additional) | |
| accompanying(adjective, extra, additional) | |
| additional(adjective, extra) | |
| auxiliary(noun, adjective, extra, addition, additional) | |
| optional |
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| APA | Smart Define. (2015). add-on thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/add-on/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "add-on thesaurus" https://smartdefine.org/add-on/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, add-on thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/add-on/thesaurus/synonyms>. |
| MLA | Smart Define. "add-on thesaurus" 22 December 2015. Web. 28 September 2026. <https://smartdefine.org/add-on/thesaurus/synonyms> |