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Rainier

American

[ruh-neer, rey-, rey-neer] / rəˈnɪər, reɪ-, ˈreɪ nɪər /

noun

Mount, a volcanic peak in W Washington, in the Cascade Range. 14,408 feet (4,392 meters).

Rainier British

/ ˈreɪnɪə, rə-, reɪˈnɪə /

noun

a mountain in W Washington State: the highest mountain in the state and in the Cascade Range. Height: 4392 m (14 410 ft)

"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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On one side you have the skyscrapers of Seattle city while on the other you have the snow-capped peak of Mount Rainier rising high above the stands.

From BBC • Jun. 25, 2026

In 2024, with their son Sam, the Ballmers launched Rainier Climate, a nonprofit aimed at cutting greenhouse gas emissions.

From The Wall Street Journal • Apr. 18, 2026

Amazon’s cloud business did score wins this year: it brought its data-center initiative Project Rainier online, secured a $38 billion deal with OpenAI and released its latest Trainium3 custom chip.

From MarketWatch • Dec. 30, 2025

It has said it expects to be using more than one million Trainium 2 chips by the end of the year, including its use of the Project Rainier supercomputer with nearly 500,000 Trainium processors.

From Barron's • Dec. 2, 2025

She looked at Mount Rainier on the map.

From "The Honest Truth" by Dan Gemeinhart

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