mountain
noun
moun·tain
ˈmau̇n-tᵊn 
often attributive
1
a
: a landmass that projects conspicuously above its surroundings and is higher than a hill
The sun set behind the mountains.
b
: an elongated ridge
2
a
: a great mass
… a mountain of a man …—
David Butwin
David Butwin
b
: a vast number or quantity
a mountain of mail
a mountain of debt
Examples of mountain in a Sentence
She watched the sun set behind the mountains.
a cabin in the mountains
They both like mountain climbing.
We've received a mountain of mail.
Recent Examples on the Web
But extreme warmth across the West this winter has meant more precipitation falling as rain, not snow — a symptom of global warming, which in recent years has been pushing average snow lines higher in the mountains and changing the timing of runoff.
—Ian James, Los Angeles Times, 28 Feb. 2026
The region's rugged terrain, marked by mountains and steep canyons, has long been a deterrent to migration.
—Lauren Villagran, USA Today, 28 Feb. 2026
Late Thursday night the Taliban’s military launched attacks on Pakistani positions along some sections of their porous and disputed border that wends 1,600 miles through rugged mountains and desert.
—Sophia Saifi, CNN Money, 27 Feb. 2026
How thin will my base layer need to be to avoid a blowout on the mountain?
—Marisa McMillan, Outside, 27 Feb. 2026
See All Example Sentences for mountain
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Ian James, Los Angeles Times, 28 Feb. 2026
The region's rugged terrain, marked by mountains and steep canyons, has long been a deterrent to migration.
—Lauren Villagran, USA Today, 28 Feb. 2026
Late Thursday night the Taliban’s military launched attacks on Pakistani positions along some sections of their porous and disputed border that wends 1,600 miles through rugged mountains and desert.
—Sophia Saifi, CNN Money, 27 Feb. 2026
How thin will my base layer need to be to avoid a blowout on the mountain?
—Marisa McMillan, Outside, 27 Feb. 2026
See All Example Sentences for mountain
Cite this Entry
“Mountain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mountain. Accessed 2 Mar. 2026.
Copy CitationKids Definition
mountain
noun
moun·tain
ˈmau̇nt-ᵊn
1
: an elevation higher than a hill
2
: a great mass or huge number
a mountain of mail
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