/ Dictionary / Index C Clio: Meaning and Definition of Find definitions for: Cli•o Pronunciation: (klē'ōfor 1 alsoklī'ō), [key] — pl. Cli•os the Muse of history. any of a group of awards presented annually by the advertising industry for achievement in television commercials. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: clio (Thesaurus) Clintonomics cliometrics Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language