132 entries under addition topic. ×
| expansion(noun, act, time, area, advance) | |
| growth(noun, advance, increase, raise, gain) | |
| spread(noun, territory, act, order, time) | |
| enlargement(noun, act, advance, increase, raise) | |
| development(noun, advance, increase, raise, gain) | |
| increase(noun, advance, increase, rise, progress) | |
| amplification(noun, increase, rise, development, spread) | |
| sweep(noun, territory, order, area, increase) | |
| augmentation(noun, advance, increase, raise, gain) | |
| continuation(noun, increase, line, spread, extra) | |
| stretch(noun, territory, order, time, area) | |
| prolongation(noun, act, increase, line, spread) | |
| addendum(noun, increase, spread, extra) | |
| annex(noun, part, increase, spread, division) | |
| wing(noun, area, part, increase, spread) | |
| broadening(noun, increase, spread, growth) | |
| extent(noun, territory, order, time, area) | |
| adjunct(noun, part, increase, spread, extra) | |
| appendage(noun, part, increase, spread, extra) | |
| elongation(noun, act, increase, spread, growth) |
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| APA | Smart Define. (2015). extension thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/extension/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extension thesaurus" https://smartdefine.org/extension/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, extension thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/extension/thesaurus/synonyms>. |
| MLA | Smart Define. "extension thesaurus" 22 December 2015. Web. 24 September 2026. <https://smartdefine.org/extension/thesaurus/synonyms> |