/ Dictionary / Index I Ionesco: Meaning and Definition of Find definitions for: Io•nes•co Pronunciation: (yu-nes'kō, ē-u-), [key] born 1912, French playwright, born in Rumania. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ionesco (Thesaurus) ion chamber ion exchange Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language