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

—E. K. Brown

b

: a vast number or quantity

a mountain of mail

a mountain of debt

Synonyms

• peak
• alp
• mount

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

Your next destination is high atop a mountain to the north, but take a detour first into the adjacent port town of Sollér, known for its pottery and handmade textiles. —Emilio Parra Doiztua, New York Times, 16 Oct. 2025

By bringing mountains, bells, temples, kites and looms into the heart of Paris, Songmont demonstrated how Eastern aesthetics can resonate globally. —Footwear News, 15 Oct. 2025

The mountains on either side of the water give way to towering canyon walls, spruce and pine thin out, and only stout dwarf willow and spindly alder remain. —Chloe Berge, AFAR Media, 15 Oct. 2025

Stewart, a business banking team manager, joined Gravity Haus Vail last September after moving to the mountains from New York City. —Cari Shane, USA Today, 15 Oct. 2025

Word History

Etymology

Middle English montaine, monteine, mounteyne, borrowed from Anglo-French muntaine, monteigne, mountaigne "elevated region, mountain range, mountain" (also continental Old French, Middle French montagne), going back to Vulgar Latin *montānea, from Latin mont-, mons "mountain, hill" + Vulgar Latin *-ānea, collective suffix, from neuter plural of Latin -āneus (from -ānus -an entry 2 + -eus -eous) — more at mount entry 1

First Known Use

13th century, in the meaning defined at sense 1a

Phrases Containing mountain

• acute mountain sickness
• American mountain ash
• Bernese mountain dog
• cat-a-mountain
• European mountain ash
• make a mountain out of a molehill
• mountain ash
• mountain bicycle
• mountain bike
• mountain biking
• mountain bluebird
• mountain chain
• mountain coati
• mountain cranberry
• mountain dew
• mountain goat
• mountain gorilla
• mountain laurel
• mountain lion
• mountain mahogany
• mountain man
• mountain sheep
• mountain sickness
• mountain time
• snow-on-the-mountain
• Welsh mountain pony

Rhymes for mountain

• fountain
• intermountain

Kids 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