convexity vs ridge

convexity and ridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
convexity	Yes	No	No	No
ridge	Yes	No	Yes	No

As nouns, ridge is a hyponym of convexity; that is, ridge is a word with a more specific, narrower meaning than convexity:

Other hyponyms of convexity include umbo, camber, entasis, knob, node, thickening, peak, point, tip, taper, projection.

convexity (noun)	ridge (noun)
the property possessed by a convex shape	a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters
a shape that curves or bulges outward	any long raised border or margin of a bone or tooth or membrane
	a long narrow natural elevation or striation
	a long narrow range of hills
	a long narrow natural elevation on the floor of the ocean
	any long raised strip

convexity (verb)	ridge (verb)
	form into a ridge
	spade into alternate ridges and troughs
	throw soil toward (a crop row) from both sides
	plough alternate strips by throwing the furrow onto an unploughed strip
	extend in ridges