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Yellowstone

American

[yel-oh-stohn] / ˈyɛl oʊˌstoʊn /

noun

a river flowing from NW Wyoming through Yellowstone Lake and NE through Montana into the Missouri River in W North Dakota. 671 miles (1,080 km) long.

Yellowstone British

/ ˈjɛləʊˌstəʊn /

noun

a river rising in N Wyoming and flowing north through Yellowstone National Park, then east to the Missouri. Length: 1080 km (671 miles)

"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.

It’s about the wolves of Yellowstone and Wyoming and follows different narratives from those who are trying to protect them and those trying to kill them.

From The Wall Street Journal • May 11, 2026

In 2020, she had a recurring role on the Paramount show Yellowstone.

From BBC • May 7, 2026

A magnitude 7.2 quake in 1959 centered in Montana near Yellowstone National Park triggered the largest quake-triggered landslide on record in North America.

From Los Angeles Times • May 4, 2026

Famous examples include Yellowstone in the United States, Toba in Indonesia, and the largely submerged Kikai caldera in Japan.

From Science Daily • Mar. 29, 2026

I asked him what caused Yellowstone to blow when it did.

From "A Short History of Nearly Everything" by Bill Bryson

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