87 entries under extension topic. ×
| increase(noun, verb, support, take, cover) | |
| addition(noun, part, increase, delay, rise) | |
| addendum(noun, act, increase, delay, development) | |
| appendix(noun, increase, delay, development, spread) | |
| continuation(noun, increase, delay, development, line) | |
| accessory(noun, part, increase, extra, addition) | |
| adjunct(noun, act, part, help, increase) | |
| appendage(noun, part, increase, delay, development) | |
| appurtenance(noun, part, increase, extra, addition) | |
| affix(noun, verb, continue, boost, attach) | |
| annex(noun, verb, part, advance, increase) | |
| sequel(noun, increase, line, extra, addition) | |
| postscript(noun, increase, line, extra, addition) | |
| subsidiary(noun, increase, extra, addition) | |
| augmentation(noun, increase, delay, rise, influence) | |
| extra(noun, part, increase, addition) | |
| attachment(noun, act, increase, measure, extra) | |
| auxiliary(noun, adjective, part, extra, addition) | |
| accoutrement(noun, part, extra, addition) | |
| continuance(noun, persistence) |
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| APA | Smart Define. (2015). supplement thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/supplement/thesaurus/synonyms |
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| Harvard | Smart Define 2015, supplement thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/supplement/thesaurus/synonyms>. |
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