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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

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Rainier

This gave her the opportunity to perform throughout Europe, South America, North Africa and even during inauguration events for Prince Rainier III of Monaco.

From Los Angeles Times ● Jun. 29, 2026

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

I’d lied to Wesley; I didn’t have anything close to the gear you needed to climb a mountain like Rainier.

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