/ Dictionary / Index N NFL: Meaning and Definition of Find definitions for: NFL Pronunciation: [key] National Football League. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. NFD. NFS Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language