/ Dictionary / Index S supranational: Meaning and Definition of Find definitions for: su•pra•na•tion•al Pronunciation: (s"pru-nash'u-nl), [key] — adj. outside or beyond the authority of one national government, as a project or policy that is planned and controlled by a group of nations. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supranational (Thesaurus) supramolecular supranatural 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