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

Grass grows best when soil is treated and terrain is leveled to support strong root systems. —Lee Wallender, The Spruce, 2 May 2026

Time hasn’t diminished her flinty chemistry with Meryl Streep or Emily Blunt, thank God, though her moments with Stanley Tucci drift into needlessly sappy terrain. —Chris Feil, Vulture, 1 May 2026

Paglen’s ideas, collected between two covers, carve a clean, linear path through our messy neural era, engaging in the kind of big-picture sense-making that books remain well suited to do, even as AI encroaches on this terrain. —Louis Bury, ARTnews.com, 1 May 2026

Hikers should be prepared for steep ascents and descents, uneven terrain, and high altitude conditions. —Staff Author, Travel + Leisure, 1 May 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