[suh-prem-uh-see, soo-]


the state of being supreme.
supreme authority or power.

Origin of supremacy

First recorded in 1540–50; supreme1 + -acy
Related formspre·su·prem·a·cy, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for supremacy



supreme power; authority
the quality or condition of being supreme
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

Word Origin and History for supremacy

1540s, from supreme + -acy.

Online Etymology Dictionary, © 2010 Douglas Harper