/ Dictionary / Index C Charles X: Meaning and Definition of Find definitions for: Charles X Pronunciation: [key] (Charles Gustavus) 1622–60, king of Sweden 1654–60. 1757–1836, king of France 1824–30. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Charles IX Charles XI Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language