/ Dictionary / Index C callop: Meaning and Definition of Find definitions for: cal•lop Pronunciation: (kal'up), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Call of the Wild, The* call option Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language