/ Dictionary / Index C costing: Meaning and Definition of Find definitions for: cost•ing Pronunciation: (kôs'ting, kos'-), [key] — n. Chiefly Brit. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: costing (Thesaurus) costermonger cost, insurance, and freight Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language