132 entries under addition topic. ×
| waxing(noun, advance, raise, gain, rise) | |
| codicil(noun, increase, extra, supplement) | |
| cumulation(noun, raise, gain, rise, development) | |
| exaggeration(noun, raise, gain, rise, development) | |
| incorporation(noun, raise, gain, rise, development) | |
| insert(noun, support, increase, extra) | |
| intensification(noun, increase, raise, gain, rise) | |
| maximization(noun, raise, gain, rise, development) | |
| merger(noun, raise, gain, rise, development) | |
| optimization(noun, raise, gain, rise, development) | |
| postscript(noun, increase, line, extra) | |
| step-up(noun, raise, gain, rise, development) | |
| accent(noun, decoration, fixture) | |
| accoutrement(noun, part, extra) | |
| added | |
| added feature(noun, expression, increase, extra) | |
| additional room(noun, expression, wing, porch) | |
| affix(noun, supplement) | |
| afterthought | |
| appliance(noun, decoration, fixture) |
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| APA | Smart Define. (2015). extension thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/extension/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extension thesaurus" https://smartdefine.org/extension/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, extension thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/extension/thesaurus/synonyms>. |
| MLA | Smart Define. "extension thesaurus" 22 December 2015. Web. 26 September 2026. <https://smartdefine.org/extension/thesaurus/synonyms> |