101 entries under advance topic. ×

37
extend(verb, go, cover, increase)
27
protract(verb, support, take, go, help)
25
lengthen(verb, take, go, cover)
21
continue(verb, support, take, help, cover)
18
draw out(verb, expression, phrasal verb, take, go)
18
sustain(verb, support, keep, maintain)
13
expand(verb, take, cover, increase)
12
keep up(verb, expression, phrasal verb, support, control)
10
maintain(verb, support, help, keep)
8
carry on(verb, expression, phrasal verb, take, cover)
7
dilate(verb, take, cover, increase)
7
last(verb, take, cover, increase)
7
persist(verb, maintain, delay, continue)
6
endure(verb, maintain, continue, extend)
6
enlarge(verb, take, cover, increase)
6
keep going(verb, expression, support, control, help)
5
persevere(verb, control, keep, maintain)
5
spread(verb, take, cover, increase)
4
broaden(verb, take, cover, increase)
4
go on(verb, expression, phrasal verb, take, cover)
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APASmart Define. (2016). prolong thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/prolong/thesaurus/synonyms
ChicagoSmart Define. 2016. "prolong thesaurus" https://smartdefine.org/prolong/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, prolong thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/prolong/thesaurus/synonyms>.
MLASmart Define. "prolong thesaurus" 17 February 2016. Web. 24 September 2026. <https://smartdefine.org/prolong/thesaurus/synonyms>