/ Dictionary / Index N nail file: Meaning and Definition of Find definitions for: nail' file" Pronunciation: [key] a small file of metal or cardboard, for trimming, smoothing, or shaping the fingernails and sometimes having a point for removing dirt from under them. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nailfile (Thesaurus) nailer joist nailhead Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language