/ Dictionary / Index I island universe: Meaning and Definition of Find definitions for: is'land u'niverse Pronunciation: [key] an external galaxy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Islands of the Blessed Islas de la Bahía 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