Definition of "upswell" [up•swell]

• A rising swell. (noun)
• To swell upward. (verb)

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• "For all the attention the Mideast protests have received, their most notable impact on the region thus far hasn't been an upswell of democracy."
• "The crowd began to cheer with a huge upswell of elation."
• "“There was such an upswell [by progressives] for single-payer that [leaders] opted for some compromise that would not have been given if there wasn't so much support for single-payer.”"