136 entries under swell topic. ×

4
multiply(verb, advance, increase, open, develop)
4
outbreak(noun, movement, sign, rush)
4
raise(noun, verb, act, advance, increase)
4
spread(noun, verb, advance, increase, open)
3
amplify(verb, increase, open, develop, extend)
3
augmentation(noun, act, advance, increase, raise)
3
billow(noun, verb, advance, increase, raise)
3
buildup(noun, act, increase, rise)
3
enlargement(noun, act, advance, increase, raise)
3
escalate(verb, increase, rise, grow)
3
escalation(noun, act, increase, raise, gain)
3
gain(noun, verb, increase, raise, rise)
3
go up(verb, expression, phrasal verb, advance, increase)
3
grow(verb, advance, increase, open, develop)
3
gush(noun, movement, sign, rush)
3
heighten(verb, advance, increase, open, develop)
3
multiplication(noun, act, advance, increase, raise)
2
aggrandize(verb, increase, open, develop, extend)
2
beef up(verb, expression, phrasal verb, increase, open)
2
blow up(expression, increase, open, develop, extend)
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APASmart Define. (2015). upsurge thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/upsurge/thesaurus/synonyms
ChicagoSmart Define. 2015. "upsurge thesaurus" https://smartdefine.org/upsurge/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, upsurge thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/upsurge/thesaurus/synonyms>.
MLASmart Define. "upsurge thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/upsurge/thesaurus/synonyms>