/ Dictionary / Index C Cyd: Meaning and Definition of Find definitions for: Cyd Pronunciation: (sid), [key] — n. a female given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cyclotron cyder Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language