/ Dictionary / Index C ciao*: Meaning and Definition of Find definitions for: cia•o Pronunciation: (chä'ô Eng. chou), [key] — interj. Italian. (used as a word of greeting or parting): hello; goodbye; so long; see you later. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ciano Ciardi Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language