136 entries under noun topic. ×

16
protraction(act, increase, delay, development)
15
continuation(increase, keep, delay, development)
14
extension(act, increase, line, spread)
11
continuance(increase, keep, line, spread)
10
lengthening(increase, delay, development, spread)
10
perpetuation(increase, keep, line, spread)
8
elongation(act, increase, delay, development)
8
persistence(course, track, period, extension)
7
maintenance(support, keep, spread, care)
7
wing(increase, delay, development, spread)
6
delay(increase, development, spread, reach)
6
postponement(increase, delay, development, spread)
6
production(increase, delay, development, line)
6
run(course, track, period, extension)
6
stretch(increase, delay, development, spread)
5
continuity(increase, line, course, track)
5
duration(increase, event, line, course)
5
lengthiness
5
projection(shoot, section, extension, annex)
4
annex(increase, delay, development, spread)
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APASmart Define. (2015). prolongation thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/prolongation/thesaurus/synonyms
ChicagoSmart Define. 2015. "prolongation thesaurus" https://smartdefine.org/prolongation/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, prolongation thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/prolongation/thesaurus/synonyms>.
MLASmart Define. "prolongation thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/prolongation/thesaurus/synonyms>