/ Dictionary / Index I infighting: Meaning and Definition of Find definitions for: in•fight•ing Pronunciation: (in'fī"ting), [key] — n. fighting at close range. fighting between rivals, people closely associated, members of a group, etc.; internecine contention. free-for-all fighting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. infield out infill Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language