37 entries under extension topic. ×

17
maintenance(noun, support, control, keep, spread)
6
continuation(noun, increase, keep, line, spread)
4
perpetuation(noun, increase, keep, line, spread)
3
endurance(persistence, continuation, continuance, permanence)
3
perpetuating(persistence, continuance)
3
persistence(continuation, continuance, permanence)
3
preserving(noun, control, increase, line, care)
2
tenacity(persistence, conformity, continuance, conservatism)
1
continuance(noun, increase, keep, line, spread)
1
continuity(persistence, continuation, continuance)
1
prolongation(noun, increase, keep, line, spread)
1
sustaining(noun, increase, keep, line, care)
1
sustenance(noun, increase, line, persistence)
0
addition maintenance(expression, persistence, continuance)
0
assiduity(persistence, continuance)
0
augmenting(persistence, continuance)
0
continuing(persistence, continuance)
0
drawing out(expression, persistence, continuance)
0
duration(persistence, continuance)
0
enduring(persistence, continuance)
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APASmart Define. (2015). preservation thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/preservation/thesaurus/synonyms
ChicagoSmart Define. 2015. "preservation thesaurus" https://smartdefine.org/preservation/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, preservation thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/preservation/thesaurus/synonyms>.
MLASmart Define. "preservation thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/preservation/thesaurus/synonyms>