mountain

American  

[moun-tn] / ˈmaʊn tn /

noun

1. a natural elevation of the earth's surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2,000 feet (610 meters).

2. a large mass of something resembling this, as in shape or size.

3. a huge amount.

   a mountain of incoming mail.

4. (initial capital letter) a steam locomotive having a four-wheeled front truck, eight driving wheels, and a two-wheeled rear truck.

5. Also called mountain wine.  British Archaic. a sweet Malaga wine.

---

adjective

1. of or relating to mountains.

   mountain air.

2. living, growing, or located in the mountains.

   mountain people.

3. resembling or suggesting a mountain, as in size.

idioms

1. make a mountain out of a molehill. molehill.

Mountain ¹ British  

/ ˈmaʊntɪn /

noun

1. an extremist faction during the French Revolution led by Danton and Robespierre

---

mountain ² British  

/ ˈmaʊntɪn /

noun

1. 1. a natural upward projection of the earth's surface, higher and steeper than a hill and often having a rocky summit

   2. ( as modifier )

      mountain people

      mountain scenery

   3. ( in combination )

      a mountaintop

2. a huge heap or mass

   a mountain of papers

3. anything of great quantity or size

4. a surplus of a commodity, esp in the European Union

   the butter mountain

5. informal a serious or considerable difficulty or obstruction to overcome

6. See molehill

---

mountain Scientific  

/ moun′tən /

1. A generally massive and usually steep-sided, raised portion of the Earth's surface. Mountains can occur as single peaks or as part of a long chain. They can form through volcanic activity, by erosion, or by uplift of the continental crust when two tectonic plates collide. The Himalayas, which are the highest mountains in the world, were formed when the plate carrying the landmass of India collided with the plate carrying the landmass of China.

---

mountain More Idioms  

1. see if the mountain won't come to Muhammad; make a mountain out of a molehill.

---

Other Word Forms

• mountainless adjective
• submountain adjective
• undermountain noun

Etymology

Origin of mountain

First recorded in 1175–1225; Middle English mountaine, from Old French montaigne, from Vulgar Latin montānea (unrecorded), noun use of feminine of montāneus (unrecorded), from Latin montān(us) “mountainous” (from mont-, stem of mōns “hill, mountain” + -ānus -an ) + -eus, adjective suffix

Explanation

A mountain is a large and often steep landmass that's much higher than the surrounding area. It's not to be confused with a molehill. The word mountain has been around since the 1200s. A mountain is much larger than an average hill; it's a mass of land that rises up to 2000 feet or so. Mountain does not always describe a land mass. It can also be used to refer to an undertaking, a pile of something, or even a large dose of trouble. You might have a mountain of mashed potatoes you don't want to eat, or a mountain of homework.

Example Sentences

The open pit is located in the Clark Mountains, which provide habitat for bighorn sheep and are estimated to harbor the second-highest density of rare plants of any of the state’s mountain ranges.

From Los Angeles Times • Apr. 15, 2026

Writing on his fundraising page, Parrish said mountain rescue team volunteers searched tirelessly for Luke and were available ''365 days a year to respond to emergencies in the mountains and remote areas of Scotland''.

From BBC • Apr. 14, 2026

It took around four years to build a four-bedroom mountain modern home, which was inspired by the Vandamm House in the 1959 film “North by Northwest,” and Frank Lloyd Wright’s Fallingwater in Pennsylvania, Eberle said.

From The Wall Street Journal • Apr. 12, 2026

“This is our next frontier,” said Jeremy Cooper, vice president of mountain sports development at Boyne Resorts, which runs nine resorts in North America.

From Slate • Apr. 11, 2026

“We’ll explain, and then if you want to go back to the mountain, that’s your call. We can’t force you to be a criminal.”

From "Glitch" by Laura Martin

Related Words

• alp
• bluff
• butte
• cliff
• crag
• elevation
• eminence
• height
• mesa
• mount
• palisade
• peak
• pike
• precipice
• range
• ridge
• sierra
• tor
• volcano