/ Dictionary / Index M message center: Meaning and Definition of Find definitions for: mes'sage cen"ter Pronunciation: [key] an office or other area where incoming and outgoing messages, mail, etc., are received and transmitted, as by telephone, computer, or messenger. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. message message switching Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language