computer science vs cascade

computer science and cascade both are nouns.

Word	Noun	Adjective	Verb	Adverb
computer science	Yes	No	No	No
cascade	Yes	No	Yes	No

computer science (noun)	cascade (noun)
the branch of engineering science that studies (with the aid of computers) computable processes and structures	a sudden downpour (as of tears or sparks etc) likened to a rain shower
	a succession of stages or operations or processes or units
	a small waterfall or series of small waterfalls

computer science (verb)	cascade (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