Terrain
/təˈreɪn/
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Definition
(noun) A single, distinctive rock formation; an area having a preponderance of a particular rock or group of rocks.
Sentence Examples
This is awfully hilly terrain; I hope we don't screw up the transmission.
The rough terrain checked the progress of the hikers.
CEFR Practice Quiz
The mountain bikers faced a very difficult ____ with many steep hills and rocky paths throughout their long journey today.