/ Dictionary / Index B borrow pit: Meaning and Definition of Find definitions for: bor'row pit" Pronunciation: [key] — Civ. Engin. Civ. Engin. a pit from which construction material, as sand or gravel, is taken for use as fill at another location. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. borrowing Bors Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language