104 entries under extension topic. ×
| accumulation(noun, advance, increase, raise, rise) | |
| appurtenance(noun, part, extra, accessory) | |
| expansion(noun, advance, increase, raise, delay) | |
| accrual(noun, advance, increase, raise, rise) | |
| aggrandizement(noun, advance, increase, raise, rise) | |
| auxiliary(noun, adjective, part, extra) | |
| continuation(noun, increase, delay, development, spread) | |
| development(noun, advance, increase, raise, delay) | |
| ell(noun, section, annex, addendum) | |
| fixture(noun, part, extra, accessory) | |
| growth(noun, advance, increase, raise, rise) | |
| inflation(noun, advance, increase, raise, rise) | |
| swelling(noun, increase, raise, rise, growth) | |
| access(noun, raise, rise, growth, surge) | |
| amplification(noun, increase, delay, rise, development) | |
| hike(noun, advance, increase, raise, rise) | |
| multiplication(noun, advance, increase, raise, rise) | |
| surge(noun, advance, increase, raise, rise) | |
| upturn(noun, advance, increase, raise, rise) | |
| division(section, annex, calculation, reckoning) |
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| APA | Smart Define. (2015). addition thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/addition/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "addition thesaurus" https://smartdefine.org/addition/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, addition thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/addition/thesaurus/synonyms>. |
| MLA | Smart Define. "addition thesaurus" 22 December 2015. Web. 25 September 2026. <https://smartdefine.org/addition/thesaurus/synonyms> |