/ Dictionary / Index B backpack: Meaning and Definition of Find definitions for: back•pack Pronunciation: (bak'pak"), [key] — n. a pack or knapsack, often of canvas or nylon, to be carried on one's back, sometimes supported on a lightweight metal frame strapped to the body. a piece of equipment designed to be used while being carried on the back. —v.i. to go on a hike, using a backpack: We went backpacking in the Adirondacks. —v.t. to place or carry in a backpack or on one's back. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: backpack (Thesaurus) back order back-paddle Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language