cascade vs falls

cascade and falls both are nouns.

Word	Noun	Adjective	Verb	Adverb
cascade	Yes	No	Yes	No
falls	Yes	No	No	No

As nouns, falls is a hypernym of cascade; that is, falls is a word with a broader meaning than cascade:

Other hypernyms of cascade include waterfall.

cascade (noun)	falls (noun)
a sudden downpour (as of tears or sparks etc) likened to a rain shower	a steep descent of the water of a river
a succession of stages or operations or processes or units	the petals or sepals of a flower that bend downward (especially the outer perianth of an iris)
a small waterfall or series of small waterfalls

cascade (verb)	falls (verb)
arrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible
rush down in big quantities, like a cascade