/ Dictionary / Index C CYA: Meaning and Definition of Find definitions for: CYA Pronunciation: [key] &hasp;). cover your ass. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Cy cyan Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language