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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.

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

The company brought its data-center initiative Project Rainier online last month, and reported a reacceleration in AWS revenue growth to 20% for the third quarter.

From MarketWatch • Dec. 1, 2025

Records show Booker took part in at least two other strongwoman competitions this year - winning the Rainier Classic in June and finishing second at North America's Strongest Woman in July.

From BBC • Nov. 26, 2025

On Wednesday, Amazon said one of its largest AI data center investments, Project Rainier, was now fully operational.

From The Wall Street Journal • Oct. 30, 2025

They looked like the hands on the skeleton in the Rainier Scientific catalogue that Ron offered to buy for me, except they had skin, blotchy skin, and I didn’t want gifts from Ron.

From "Extremely Loud and Incredibly Close" by Jonathan Safran Foer

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