/ Dictionary / Index B bastard file: Meaning and Definition of Find definitions for: bas'tard file" Pronunciation: [key] a file of the commercial grade of coarseness between coarse and second-cut. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bastard eigne bastard indigo 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