/ Dictionary / Index C chief of state: Meaning and Definition of Find definitions for: chief' of state' Pronunciation: [key] the titular head of a nation, as a president or king. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Chief of Staff chief petty officer Related Content Daily Word Quiz: alacrity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language