1. an area of land, especially with regard to its physical features
2. a particular type of ground or land surface
Usage: often used in military or outdoor contexts

Examples

• The hikers struggled across the rocky terrain.
• Military vehicles are designed to handle rough terrain.
• The desert terrain was harsh and unforgiving.
• We studied the terrain before planning our route.
• The mountainous terrain made construction difficult.
• The terrain in this region is mostly flat farmland.