Upper Peninsula

American

noun

the peninsula between lakes Superior and Michigan constituting the N part of Michigan. U.P.

Upper Peninsula British

noun

a peninsula in the northern US between Lakes Superior and Michigan, constituting the N part of the state of Michigan

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Upper Peninsula

Born Clarence Johnson in Michigan’s Upper Peninsula in 1910, Johnson studied aeronautics at the University of Michigan and spent time in wind tunnels learning about locomotive and automobile design.

From The Wall Street Journal ● May 18, 2026

It will harm those in Arizona who cannot withstand the heat, and it will harm those in Michigan’s Upper Peninsula who cannot stand the cold or snow.

From Slate ● Aug. 26, 2025

I’m not talking about a motel in the boonies of the Upper Peninsula of Michigan or a drafty log cabin on a lake in Maine or Minnesota.

From Salon ● May 7, 2024

Gray wolves are currently confined “almost exclusively” to Michigan’s Upper Peninsula, the DNR said.

From Seattle Times ● Apr. 5, 2024

The great snow-covered lawn of Rose Terrace, the Dodge mansion, boasts a forty-foot Christmas tree trucked in from the Upper Peninsula.

From "Middlesex: A Novel" by Jeffrey Eugenides

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023