/ Dictionary / Index B backside: Meaning and Definition of Find definitions for: back•side Pronunciation: (bak'sīd"), [key] — n. the rear or back part or view of an object, person, scene, etc.; that part which is opposite the front. rump; buttocks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: backside (Thesaurus) backshore backside-front Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language