/ Dictionary / Index C call-up: Meaning and Definition of Find definitions for: call-up Pronunciation: (kôl'up"), [key] — n. an order to report for active military service. the number of persons drafted during a specific period of time: The November call-up was set at 15,000. a call or urging to service. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: call-up (Thesaurus) call to quarters callus Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language