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

For the second time in a week, someone has died visiting a waterfall in the North Carolina mountains, searchers say. —Mark Price updated July 14, Charlotte Observer, 14 July 2025

Luckily, their families found the beautiful small town in the mountains, Redwood Hollows. —Pam Kragen, San Diego Union-Tribune, 13 July 2025

Tennessee is filled with mountain towns that promise scenic views, Southern charm, and plenty of outdoor adventure, but not all of them require you to elbow through crowds on the main strip. —Abby Price, Travel + Leisure, 13 July 2025

Stage eight was uneventful, but with the decisive mountain stages having not yet begun, relationships could descend even further. —Jacob Whitehead, New York Times, 12 July 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