/ Dictionary / Index C cay: Meaning and Definition of Find definitions for: cay Pronunciation: (kā, kē), [key] — n. a small low island; key. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cay (Thesaurus) Caxton Cayce 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