/ Dictionary / Index E elephant gun: Meaning and Definition of Find definitions for: el'ephant gun" Pronunciation: [key] a gun of very large caliber, as .410 or greater, used in killing elephants or other big game. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. elephant grass elephantiasis Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language