Cascades (Noun) — A mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range.
Cascades (Noun) — A small waterfall or series of small waterfalls.
Cascades (Noun) — A succession of stages, operations, processes or units. ex. "progressing in severity as though a cascade of genetic damage was occurring" ex. "separation of isotopes by a cascade of processes"
Cascades (Noun) — A sudden downpour (as of tears or sparks etc) likened to a rain shower. ex. "a sudden cascade of sparks"
Cascades (Verb) — Rush down in big quantities, like a cascade.
Cascades (Verb) — (computing) arrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible.