Rocky Mountains

[ rok-ee moun-tnz ]
/ ˈrɒk i ˈmaʊn tnz /

plural noun

the chief mountain system in North America, extending from central New Mexico to northern Alaska. Highest peak, Denali, 20,300 feet (6,187 meters).



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What does “vacillate” mean?
Also called Rockies.

Origin of Rocky Mountains

First recorded in 1800–05; translation of Canadian French les Montagnes des Roches, from Cree asini˙waciya, plural of asini˙waciy, equivalent to asini˙-, combining form of asiniy “stone, rock” + waciy “mountain,” originally referring to the Canadian Rockies Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for Rocky Mountains

Rocky Mountains


pl n

the chief mountain system of W North America, extending from British Columbia to New Mexico: forms the Continental Divide. Highest peak: Mount Elbert, 4399 m (14 431 ft). Mount McKinley (6194 m (20 320 ft)), in the Alaska Range, is not strictly part of the Rocky Mountains
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

Cultural definitions for Rocky Mountains

Rocky Mountains

Major mountain chain of western North America, running from Alaska to Mexico.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.