American Heritage Dictionary
(4)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(4)
Elsewhere on the web
And the upheaval isn't limited to the top of the order.— The Hardball Times
She said she was honored to be chosen to lead the state through this time of economic upheaval, and said she would announce her Washington Jobs Now program today in Seattle.— The News Tribune - Tacoma - Homepage
Following an excellent second series, this one seems to be in upheaval (the show's focal character will be written out sometime this series) but the biggest upheaval is at cash-strapped network ITV, which has reportedly told producers a fourth series the very successful, very expensive series (and virtually every other ITV series that requires a budget) will not be needed.— Comic Book Resources
The upheaval is the latest blow to Thailand's economy and international reputation, coming just five months after rival protesters - clad in yellow to symbolize devotion to Thailand's king - occupied Bangkok's two main airports for about a week, stranding tens of thousands of tourists and blocking shipments.— Forbes.com: News
The unrest is the latest of Thailand's recurrent spasms of political upheaval, the physical manifestation of a deep and intractable divide that is threatening to tear the country apart.— The Seattle Times

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