terrain
US /təˈreɪn/
UK /təˈreɪn/

1.
terreno, relevo
a stretch of land, especially with regard to its physical features
:
•
The mountainous terrain made hiking difficult.
O terreno montanhoso dificultava a caminhada.
•
They had to navigate through rough and uneven terrain.
Eles tiveram que navegar por terreno acidentado e irregular.