Definition of valley noun from the Oxford Advanced Learner's Dictionary

  

valley

 noun
noun
BrE BrE//ˈvæli//
 
; NAmE NAmE//ˈvæli//
 
Mountains and valleys
 
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an area of low land between hills or mountains, often with a river flowing through it; the land that a river flows through a small town set in a valley a wooded valley the valley floor the Shenandoah Valley Wordfinderaltitude, foothill, mountain, peak, precipice, ridge, slope, summit, valley, volcano See related entries: Mountains and valleys Word Origin Middle English: from Old French valee, based on Latin vallis, valles; compare with vale.Extra examples A large cloud filled the valley and obscured vision. The castle is situated on a hill overlooking a valley. The cottage was in a wooded valley. The rivers Rhône and Rhine rise here and form broad valleys. a high hill that dominates the mineral-rich valleys of this region a valley surrounded by mountains A stream runs the length of the valley floor.
See the Oxford Advanced American Dictionary entry: valley