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geyser

American  
[gahy-zer, -ser, gee-zer] / ˈgaɪ zər, -sər, ˈgi zər /

noun

  • geysers
    plural
  1. a hot spring that intermittently sends up fountainlike jets of water and steam into the air.

  2. British Informal. a hot-water heater, as for a bath.


verb (used without object)

  1. to spew forth as or like a geyser.

    the kettle geysering all over the stove.

geyser British  
/ ˈɡiːzə, ˈɡaɪzər /

noun

  1. a spring that discharges steam and hot water

  2. a domestic gas water heater

"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

geyser Scientific  
/ gīzər /
  1. A natural hot spring that regularly ejects a spray of steam and boiling water into the air.


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.

Keep Reading on Vocabulary.com

Vocabulary lists containing geyser

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.

See Examples For:

On Dec. 7, 2023, the Railroad Commission was notified that water was leaking through a well about a mile away from the first geyser.

From The Wall Street Journal Dec. 26, 2025

Meghan is a wealthy American woman living a royal dream, if you ignore the geyser of British tabloid bile constantly burbling in the background of her life.

From Salon Aug. 27, 2025

After a few seconds I was hit full force by an 8-foot-tall geyser, and there wasn’t any lever on the pump that reduced the force.

From Los Angeles Times Jul. 25, 2024

The service closed the area, a few miles from the Old Faithful geyser.

From BBC Jul. 24, 2024

The festering wound split open anew, spewing a geyser of pus.

From "We Are the Ants" by Shaun David Hutchinson

The resulting hydrothermal systems, comparable to the network of geysers around Yellowstone National Park, may have created favorable settings for the origin and early evolution of life.

From Science Daily Jul. 2, 2026

Those lucky few had the steaming geysers, multicolored hot springs and bubbling mudpots all to themselves.

From The Wall Street Journal Jan. 23, 2026

A buildup in pressure across the region is propelling wastewater up ancient wellbores, birthing geysers that can cost millions of dollars to clean up.

From The Wall Street Journal Dec. 26, 2025

When that water falls as rain, it's absorbed by the trees, which then move it up their stems, trunks and vines before emitting it back into the air as water vapor, like slow-motion geysers.

From Science Daily Jun. 19, 2024

It grumbled as it slept, while heating geysers till they burst and restlessly worrying at fissures until they grew so deep that no one could find the bottom.

From "The Girl Who Drank the Moon" by Kelly Barnhill

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