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English definition of “ridge”

ridge

noun [C]  /rɪdʒ/ us  
a long, narrow, raised part of a surface, esp. a high edge of a hill or mountain: a mountain ridge Plowed ridges looked like stripes across the field. A ridge of high pressure is a narrow air mass that brings good weather. The ridge of a roof is where the sloping parts or sides come together at the top.
(Definition of ridge from the Cambridge Academic Content Dictionary © Cambridge University Press)
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