59 entries under extension topic. ×

21
appendage(noun, drop, part, help, cover)
18
accessory(noun, adjective, drop, part, help)
17
auxiliary(noun, adjective, part, help, associate)
14
addition(noun, part, increase, delay, development)
14
supplement(noun, act, part, help, increase)
13
appendix(noun, help, increase, delay, development)
12
appurtenance(noun, part, help, increase, supply)
12
extra(noun, adjective, part, increase, addition)
11
attachment(noun, act, increase, measure, extra)
11
addendum(noun, act, help, increase, delay)
9
annex(noun, part, increase, delay, development)
8
subsidiary(noun, adjective, increase, extra, addition)
5
augmentation(noun, increase, delay, development, spread)
5
fixture(noun, part, extra, addition)
5
increase(noun, delay, development, spread, extra)
4
continuation(noun, increase, delay, development, spread)
4
part(noun, extra, section, addition)
2
accoutrement(noun, part, extra, addition)
2
affix(noun, addition, supplement, addendum)
2
amplification(noun, increase, delay, development, spread)
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APASmart Define. (2015). adjunct thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/adjunct/thesaurus/synonyms
ChicagoSmart Define. 2015. "adjunct thesaurus" https://smartdefine.org/adjunct/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, adjunct thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/adjunct/thesaurus/synonyms>.
MLASmart Define. "adjunct thesaurus" 22 December 2015. Web. 21 September 2026. <https://smartdefine.org/adjunct/thesaurus/synonyms>