Ridge
Part of speech: noun
Definition: The line along which two sloping surfaces meet which diverge towards the ground. Highest point on a roof, represented by a horizontal line where two roof areas intersect, running the length of the area. A chain of mountains. A chain of hills. A long narrow elevation on an ocean bottom. A type of warm air that comes down on to land from mountains.
Part of speech: verb
Definition: To form into a ridge To extend in ridges
Ridgeline
Part of speech: noun
Definition: The topmost edge along a mountain ridge.