/ Dictionary / Index S sky wave: Meaning and Definition of Find definitions for: sky' wave" Pronunciation: [key] — Radio. Radio. a radio wave propagated upward from earth, whether reflected by the ionosphere or not. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. skyward skyway Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language