42 entries under maintenance topic. ×

22
addition(noun, increase, delay, development, spread)
16
supplement(noun, act, increase, delay, development)
14
extension(noun, increase, spread, extra, addition)
13
adjunct(noun, act, help, increase, delay)
13
appendix(noun, increase, note, delay, development)
11
appendage(noun, increase, delay, development, spread)
11
augmentation(noun, increase, delay, development, spread)
7
annex(noun, increase, delay, development, spread)
6
continuation(noun, increase, delay, development, spread)
6
increase(noun, delay, development, spread, extra)
2
expansion(noun, increase, delay, development, spread)
1
amplification(noun, increase, delay, development, spread)
1
arm(noun, increase, delay, development, spread)
1
branch(noun, increase, delay, development, spread)
1
broadening(noun, increase, delay, development, spread)
1
compass(noun, increase, delay, development, spread)
1
continuing(noun, increase, delay, development, spread)
1
delay(noun, increase, development, spread, reach)
1
development(noun, increase, delay, spread, addition)
1
dilatation(noun, increase, delay, development, spread)
<123>
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APASmart Define. (2015). addendum thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/addendum/thesaurus/synonyms
ChicagoSmart Define. 2015. "addendum thesaurus" https://smartdefine.org/addendum/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, addendum thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/addendum/thesaurus/synonyms>.
MLASmart Define. "addendum thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/addendum/thesaurus/synonyms>