/ Dictionary / Index D depth charge: Meaning and Definition of Find definitions for: depth' charge" Pronunciation: [key] an explosive device that is used against submarines and other underwater targets, and is usually set to detonate at a predetermined depth. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. depth depth of field Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language