surf vs moving ridge

surf and moving ridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
surf	Yes	No	Yes	No
moving ridge	Yes	No	No	No

As nouns, moving ridge is a hypernym of surf; that is, moving ridge is a word with a broader meaning than surf:

surf: waves breaking on the shore
moving ridge: one of a series of ridges that moves across the surface of a liquid (especially across a large body of water)

Other hypernyms of surf include wave.

surf (noun)	moving ridge (noun)
waves breaking on the shore	one of a series of ridges that moves across the surface of a liquid (especially across a large body of water)

surf (verb)	moving ridge (verb)
switch channels, on television
look around casually and randomly, without seeking anything in particular
ride the waves of the sea with a surfboard