terrain
nounUK /təˈreɪn/
US /təˈreɪn/
The ground and the way it looks, like flat, bumpy, or hilly.
The hikers walked slowly over the rocky terrain.
OTHER MEANINGS
2. A particular type of land, such as desert or forest.
The map shows the desert terrain in orange.
3. The physical features of an area of land.
The terrain around the lake is mostly flat.
4. A field of knowledge or activity.
She knows the terrain of computer programming well.