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Upper Carboniferous
upper chamber
upper circle
upper class
upper crust
upper hand
upper house
Upper Hutt
Upper Paleolithic
Upper Peninsula
upper respiratory
upper school
Upper Volta
upper works
uppercase
upperclassman
uppercut
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upheaval
up·heav·al [ up hv'l ] (plural up·heav·als)


noun 
Definition:
 
1. disturbance: a strong or sudden change in political, social, or living conditions
2. upward movement: a sudden raising of part of the Earth's crust
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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