55 entries under extra topic. ×
| expansion(noun, act, time, area, advance) | |
| enlargement(noun, act, advance, increase, raise) | |
| increase(noun, advance, increase, rise, progress) | |
| addition(noun, part, increase, raise, rise) | |
| augmentation(noun, advance, increase, raise, gain) | |
| continuation(noun, increase, line, spread) | |
| addendum(noun, increase, spread, addition) | |
| annex(noun, part, increase, spread, division) | |
| wing(noun, area, part, increase, spread) | |
| adjunct(noun, part, increase, spread) | |
| appendage(noun, part, increase, spread) | |
| increment(noun, increase, raise, rise, growth) | |
| appendix(noun, increase, spread, addition) | |
| sequel(noun, increase, development, result) | |
| supplement(noun, part, increase, line, spread) | |
| rise(noun, advance, increase, raise, progress) | |
| accessory(noun, part, addition, ornament) | |
| accession(noun, increase, raise, gain, rise) | |
| aggrandizement(noun, advance, increase, raise, gain) | |
| attachment(noun, treat, extravagance, addition) |
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| APA | Smart Define. (2015). extension thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/extension/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "extension thesaurus" https://smartdefine.org/extension/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, extension thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/extension/thesaurus/synonyms>. |
| MLA | Smart Define. "extension thesaurus" 22 December 2015. Web. 21 September 2026. <https://smartdefine.org/extension/thesaurus/synonyms> |