/ Thesaurus / S Synonyms of sky wave Find synonyms for: Noun1. sky wave, radio wave, radio emission, radio radiationusage: a radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surfaceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language