13 entries under addition topic. ×
| wing(noun, section, extension, annex) | |
| addendum(noun, extension, annex) | |
| annex(noun, division, extra, section) | |
| adjunct(noun, section, extension, annex) | |
| extension(noun, division, section, annex) | |
| arm(noun, division, section, extension) | |
| attachment(noun, extension, annex, addendum) | |
| affix(noun, extra, extension, addendum) | |
| appendix(noun, extension, addendum) | |
| supplement(noun, extension, addendum) | |
| new building(noun, expression, extension) | |
| subsidiary(noun, extension, addendum) | |
| supplementary building(noun, expression, extension) |
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| APA | Smart Define. (2015). ell thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ell/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ell thesaurus" https://smartdefine.org/ell/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, ell thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ell/thesaurus/synonyms>. |
| MLA | Smart Define. "ell thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/ell/thesaurus/synonyms> |