104 entries under swell topic. ×

37
extend(verb, go, cover, advance, increase)
27
protract(verb, support, take, go, help)
25
lengthen(verb, take, go, cover, advance)
24
stretch(noun, verb, take, cover, increase)
18
draw out(verb, expression, phrasal verb, take, go)
18
elongate(verb, take, go, cover, increase)
14
drag out(verb, expression, phrasal verb, take, go)
13
expand(verb, take, cover, advance, increase)
11
spin out(verb, expression, phrasal verb, take, go)
10
increase(verb, take, cover, open, develop)
9
stretch out(verb, expression, phrasal verb, increase, open)
7
dilate(verb, take, cover, advance, increase)
7
prolongate(verb, take, go, cover, increase)
6
enlarge(verb, take, cover, advance, increase)
5
spread(verb, take, cover, advance, increase)
4
broaden(verb, take, cover, advance, increase)
4
draw(verb, take, go, cover, increase)
4
improve(verb, boost, enlarge, add)
4
pull(verb, go, cover, open, run)
4
spread out(verb, expression, phrasal verb, take, go)
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APASmart Define. (2016). prolong thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/prolong/thesaurus/synonyms
ChicagoSmart Define. 2016. "prolong thesaurus" https://smartdefine.org/prolong/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, prolong thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/prolong/thesaurus/synonyms>.
MLASmart Define. "prolong thesaurus" 17 February 2016. Web. 25 September 2026. <https://smartdefine.org/prolong/thesaurus/synonyms>