/ Dictionary / Index S sky-high: Meaning and Definition of Find definitions for: sky-high Pronunciation: (skī'hī'), [key] — adv., adj. very high: Costs have gone sky-high since the war. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sky-high (Thesaurus) skyey skyhook Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language