/ Dictionary / Index O open field: Meaning and Definition of Find definitions for: o'pen field' Pronunciation: [key] — Football. Football. any area of the playing field away from the heavily trafficked line of scrimmage, in which the defense is widely scattered. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. open-faced open flash 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