/ Dictionary / Index C changing bag: Meaning and Definition of Find definitions for: chang'ing bag" Pronunciation: [key] a lightproof bag with openings made to fit closely around the arms, used in place of a darkroom in some photographic procedures. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. changeroom changing room Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language