terrain

noun

ter·​rain tə-ˈrān 

also te-

1

a(1)

: a geographic area

(2)

: a piece of land : ground

b

: the physical features of a tract of land

2

: terrane sense 1

3

a

: a field of knowledge or interest

b

: environment, milieu

Synonyms of terrain

• area
• realm
• element
• field
• domain
• walk
• department
• sphere
• kingdom

Examples of terrain in a Sentence

We had to drive over some rough terrain.

We hiked through a variety of terrains.

Recent Examples on the Web

But the sea is unpredictable, and that architecture struggles wherever currents shift, visibility drops, or terrain changes without warning. —Omar Kardoudi june 13, New Atlas, 13 June 2026

Firefighters, including 10 hand crews working in steep, rugged terrain, made progress Thursday despite triple-digit temperatures and gusty winds. —Darrell Smith, Sacbee.com, 12 June 2026

The Alps—Europe’s tallest and most sprawling mountain range—stretches across eight countries and 750 miles of terrain, setting the high bar for the world’s skiing, hiking, and biking pursuits. —Sarah Wood González, Vogue, 12 June 2026

Wet grass is slippery, and water-laden soil can create uneven terrain. —Megan Hughes, Better Homes & Gardens, 12 June 2026

Word History

Etymology

French, land, ground, from Old French terrein, from Vulgar Latin *terranum, alteration of Latin terrenum, from neuter of terrenus of earth — more at terrene

First Known Use

1766, in the meaning defined at sense 1a(1)

Phrases Containing terrain

• all-terrain vehicle

Rhymes for terrain

• abstain
• airplane
• alkane
• arcane
• arraign
• attain
• backplane
• betaine
• biplane
• blockchain
• butane
• campaign

Kids Definition

terrain

noun

ter·​rain tə-ˈrān 

also te-

: the surface features of an area of land

rough terrain