/ Dictionary / Index F flat-file: Meaning and Definition of Find definitions for: flat-file Pronunciation: (flat'fīl'), [key] of or pertaining to a database system in which each database consists of a single file not linked to any other file. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flat-file (Thesaurus) flat-felled seam flatfish Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language