: a rapid or sudden rise
an upsurge in interest
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An upsurge in drug use sometimes leads to an upsurge in crime. An upsurge of flu cases can be cause for alarm. And an upsurge of fury at overpaid CEOs might lead to new legislation to restrain high salaries. We seem to use upsurge more in negative contexts than in positive ones, but not always; we usually welcome an upsurge of consumer confidence, an upsurge in new-car sales, or an upsurge in the stock market.
Examples of upsurge in a Sentence
Recent Examples on the Web
The upsurge in supply of nickel metal—a commodity vital for auto batteries—has prompted a slump in prices, with benchmark refined futures in London hitting the lowest since 2020 earlier this year.
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Alfred Cang, Fortune, 19 June 2025
With diminished vaccine demand and increasing competition in the mRNA sector, the recent upsurge may not signify a sustainable turnaround, but instead, a fleeting reaction to favorable regulatory news.
—Trefis Team, Forbes.com, 26 May 2025
The powder keg situation in the town is stoked primarily by the upsurge in Black Lives Matter protests in the wake of George Floyd’s murder by a white Minneapolis cop.
—David Rooney, HollywoodReporter, 16 May 2025
The brief upsurge for markets in response to potential tariff negotiations, however, indicated eagerness among investors for a thaw in global trade tensions, Feinseth added.
—David Brennan, ABC News, 7 Apr. 2025
See All Example Sentences for upsurge
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Alfred Cang, Fortune, 19 June 2025
With diminished vaccine demand and increasing competition in the mRNA sector, the recent upsurge may not signify a sustainable turnaround, but instead, a fleeting reaction to favorable regulatory news.
—Trefis Team, Forbes.com, 26 May 2025
The powder keg situation in the town is stoked primarily by the upsurge in Black Lives Matter protests in the wake of George Floyd’s murder by a white Minneapolis cop.
—David Rooney, HollywoodReporter, 16 May 2025
The brief upsurge for markets in response to potential tariff negotiations, however, indicated eagerness among investors for a thaw in global trade tensions, Feinseth added.
—David Brennan, ABC News, 7 Apr. 2025
See All Example Sentences for upsurge
Cite this Entry
“Upsurge.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upsurge. Accessed 8 Jul. 2025.
Copy CitationKids Definition
upsurge
noun
up·surge
ˈəp-ˌsərj 
: a rapid or sudden rise
an upsurge of popularity
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