132 entries under addition topic. ×
| accession(noun, increase, raise, gain, rise) | |
| aggrandizement(noun, advance, increase, raise, gain) | |
| arm(noun, part, increase, spread, division) | |
| attachment(noun, treat, extra, extravagance) | |
| branch(noun, area, increase, spread, link) | |
| distension(noun, increase, rise, development, spread) | |
| multiplication(noun, advance, increase, raise, gain) | |
| span(noun, territory, order, time, area) | |
| accretion(noun, increase, raise, gain, rise) | |
| accrual(noun, increase, raise, gain, rise) | |
| appurtenance(noun, part, extra, decoration) | |
| dilatation(noun, increase, spread, growth) | |
| ell(noun, division, section, annex) | |
| fixture(noun, part, extra, accessory) | |
| radius(noun, territory, order, area, increase) | |
| swell(noun, advance, raise, gain, rise) | |
| accompaniment(noun, decoration, accompaniment, fixture) | |
| add-on(noun, increase, treat, extra, extravagance) | |
| burgeoning(noun, raise, gain, rise, development) | |
| continuing(noun, increase, line, spread) |
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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> |