190 entries under noun topic. ×

5
epidemic(disease, plague, outburst, outbreak)
5
flood(movement, sign, rush, swell)
5
hike(verb, act, advance, increase)
5
increment(advance, increase, raise, rise)
5
leap(drop, increase, fall, rise)
5
spate
4
access(raise, gain, rise, development)
4
aggrandizement(act, advance, increase, raise)
4
amplification(act, increase, swell, expansion)
4
expansion(increase, raise, rise, growth)
4
outbreak(movement, sign, rush, swell)
4
proliferation(act, increase, rise, growth)
4
raise(verb, act, advance, increase)
4
revival
4
spread(verb, advance, increase, open)
4
upgrade(advance, increase, raise, rise)
3
accretion(advance, increase, raise, gain)
3
accrual(raise, gain, rise, development)
3
addition(advance, increase, raise, rise)
3
augmentation(act, advance, increase, raise)
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APASmart Define. (2015). upsurge thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/upsurge/thesaurus/synonyms
ChicagoSmart Define. 2015. "upsurge thesaurus" https://smartdefine.org/upsurge/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, upsurge thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/upsurge/thesaurus/synonyms>.
MLASmart Define. "upsurge thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/upsurge/thesaurus/synonyms>