/ Dictionary / Index B back order: Meaning and Definition of Find definitions for: back' or"der Pronunciation: [key] an order or part of an order waiting to be filled. back-or•der Pronunciation: (bak'ôr"dur), [key] — v.t. to treat as a back order: We have to back-order your sofa until the new fabric arrives. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. back office backpack Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language