- Definitions|1
- Thesaurus|314
- Abbreviations|0
7 entries under adjective topic. ×
| extra(noun, increase, addition, additional) | |
| accompanying(extra, additional, supplementary) | |
| additional(extra, supplementary) | |
| ancillary(noun, extra, addition, additional) | |
| auxiliary(noun, extra, addition, additional) | |
| optional | |
| supplementary(extra, additional) |
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| APA | Smart Define. (2015). add-on thesaurus. Retrieved September 25, 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 25, 2026). |
| Harvard | Smart Define 2015, add-on thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/add-on/thesaurus/synonyms>. |
| MLA | Smart Define. "add-on thesaurus" 22 December 2015. Web. 25 September 2026. <https://smartdefine.org/add-on/thesaurus/synonyms> |