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upheaval

[uhp-hee-vuh l] /ʌpˈhi vəl/
noun
1.
strong or violent change or disturbance, as in a society:
the upheaval of war.
2.
an act of upheaving, especially of a part of the earth's crust.
3.
the state of being upheaved.
4.
Geology. an upward warping of a part of the earth's crust, forcing certain areas into a relatively higher position than before.
Origin of upheaval
1830-1840
1830-40; upheave + -al2
Synonyms
1. disruption, disorder, turmoil.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for upheaval

upheaval

/ʌpˈhiːvəl/
noun
1.
a strong, sudden, or violent disturbance, as in politics, social conditions, etc
2.
(geology) another word for uplift (sense 7)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for upheaval
n.

1838, in geology, from Middle English verb upheave (c.1300, cf. Old Frisian upheva, Old High German ufhevan, German aufheben), from up + heave (v.) + -al (2). Figurative sense, with reference to convulsions of society, etc., recorded from 1850.

Online Etymology Dictionary, © 2010 Douglas Harper
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