/ Dictionary / Index C Casper: Meaning and Definition of Find definitions for: Cas•per Pronunciation: (kas'pur), [key] — n. a city in central Wyoming. 51,016. a male given name. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: casper (Thesaurus) Caspar Milquetoast Caspian Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language