upheaval

From Wiktionary
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Pronunciation[change]

  • (US) IPA (key): /ʌpˈhi.vəl/
  • Hyphenation: up‧heav‧al

Noun[change]

Singular
upheaval

Plural
upheavals

  1. An upheaval is the upward movement of a portion of the earth's crust.
  2. An upheaval is a sudden change or disruption