terrain
US /təˈreɪn/
UK /təˈreɪn/

1.
terrain, relief
a stretch of land, especially with regard to its physical features
:
•
The mountainous terrain made hiking difficult.
Le terrain montagneux rendait la randonnée difficile.
•
They had to navigate through rough and uneven terrain.
Ils ont dû naviguer à travers un terrain accidenté et inégal.