/ Dictionary / Index I ITU: Meaning and Definition of Find definitions for: ITU Pronunciation: [key] International Telecommunication Union. I.T.U. Pronunciation: [key] International Typographical Union. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. itty-bitty Iturbi Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language