geyser
Americannoun
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a hot spring that intermittently sends up fountainlike jets of water and steam into the air.
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British Informal. a hot-water heater, as for a bath.
verb (used without object)
noun
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a spring that discharges steam and hot water
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a domestic gas water heater
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of geyser
1755–65; < Icelandic Geysir name of a hot spring in Iceland, literally, gusher, derivative of geysa to gush
Explanation
A geyser is a spring that dramatically spews hot water and steam — Old Faithful in Yellowstone National Park is one of the most famous. When a geyser explodes, hot water and steam shoot up out of the ground like some kind of crazy fountain. It's so amazing that people often use this word to describe things that remind them of geysers. If you suddenly make a lot of money, you hit a geyser. If someone is crying uncontrollably, that's a geyser of emotion. If you're writing quickly and well, it feels like a geyser of words. Anything powerfully flowing could be considered a geyser.
Vocabulary lists containing geyser
Physical Geography - Introductory
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English Words Derived from Old Norse
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Super Seismic: Words for Volcanoes and Earthquakes
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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.
Beyond Meat last month said it had partnered with distributor Big Geyser to launch its new Beyond Immerse sparkling drink, which contains protein and fiber, in New York this summer.
From MarketWatch • May 6, 2026
To see the Grand Canyon of the Yellowstone or the Norris Geyser Basin with its hissing springs, leave the car behind and book tours through the hotel or various tour operators.
From The Wall Street Journal • Jan. 23, 2026
Geyser was found with a man at the truck stop just outside of Chicago - and about 170 miles south of Madison - after police received reports of a man and woman loitering.
From BBC • Nov. 24, 2025
In addition to general market waters like Crystal Geyser and Arrowhead, the store offers more than a dozen water brands from at least eight countries.
From Los Angeles Times • Jul. 23, 2024
Once the most famous geyser in the park was Excelsior Geyser.
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
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
