37 entries under extension topic. ×

9
maintaining(noun, verb, adjective, increase, moving)
5
continuing(verb, adjective, increase, line, current)
4
maintenance(noun, support, keep, care)
4
persisting(verb, increase, line, current)
4
prolonging(verb, increase, line, persistence)
3
enduring(adjective, increase, line, current)
3
protracting(verb, increase, line, persistence)
3
sustenance(noun, increase, line, persistence)
2
continuation(noun, increase, keep, line, care)
2
preserving(noun, verb, adjective, increase, line)
2
producing(verb, increase, line, persistence)
1
continuance(noun, increase, keep, line, care)
1
continuity(noun, increase, line, persistence)
1
endurance(persistence, continuance)
1
furtherance(noun, increase, line, persistence)
1
perpetuation(noun, increase, keep, line, care)
1
preservation(noun, increase, keep, line, care)
1
prolongation(noun, increase, keep, line, care)
1
sequel(noun, increase, line, persistence)
0
addition maintenance(expression, increase, line, persistence)
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APASmart Define. (2015). sustaining thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sustaining/thesaurus/synonyms
ChicagoSmart Define. 2015. "sustaining thesaurus" https://smartdefine.org/sustaining/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, sustaining thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sustaining/thesaurus/synonyms>.
MLASmart Define. "sustaining thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/sustaining/thesaurus/synonyms>