/ Dictionary / Index C composing room: Meaning and Definition of Find definitions for: compos'ing room" Pronunciation: [key] a room in which compositors work in a printing establishment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. composer composing stick Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language