Old Faithful
Americannoun
Etymology
Origin of Old Faithful
So named because of the longevity and regularity of its activity
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.
William Henry Jackson’s photos of scenic wonders like Yellowstone’s Old Faithful helped generate interest in a national park system.
From The Wall Street Journal ● Nov. 7, 2025
The service closed the area, a few miles from the Old Faithful geyser.
From BBC ● Jul. 24, 2024
It was all as surprising as Old Faithful.
From Los Angeles Times ● Nov. 25, 2023
A 34-year-old Colorado man was also gored by a bison while walking near Old Faithful with family when the animal charged toward them, according to park officials.
From Seattle Times ● May 12, 2023
Gram said, “Is that where Old Faithful is? Oh, I would love to see Old Faithful.”
From "Walk Two Moons" by Sharon Creech
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.