/ Dictionary / Index S supercapital: Meaning and Definition of Find definitions for: su•per•cap•i•tal Pronunciation: (s'pur-kap"i-tl), [key] — n. Archit. a member situated between a capital and the spring of an arch, as a dosseret. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. supercalifragilisticexpialidocious supercargo Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language