Definition of groundswell in English:

groundswell

Syllabification: ground·swell
Pronunciation: /ˈgroun(d)ˌswel
 
/

noun

[in singular]
  • 1A buildup of opinion or feeling in a large section of the population: an unexpected groundswell of opposition developed
    More example sentences
    • He said there was a groundswell of opinion among backbenchers, and said he had been involved with a statement released detailing the plans.
    • There is also a groundswell of opposition among some independent financial advisers.
    • There was a groundswell of political opinion that art was thought to be for rich people.
    Synonyms
    upsurge, surge, rise, increase, escalation, outbreak, outburst, wave, upwelling
  • 2A large or extensive swell in the sea.
    More example sentences
    • The wreck is well broken among rocks, spread out and so close in that even on a flat-calm day the groundswell sloshes the boat up and down as it moves in as close as possible to drop divers off.
    • We had to get within 1.5 miles of the reef before we could distinguish the rocks from the groundswell breaking over them.
    • A gentle groundswell was building over the reef and washing well up the rock.

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