/ Dictionary / Index I interfile: Meaning and Definition of Find definitions for: in•ter•file Pronunciation: (in"tur-fīl'), [key] — -filed, -fil•ing. to combine two or more similarly arranged sets of items, as cards or documents, into a single file. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interfibrillar interfilling Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language