/ Dictionary / Index F fld.: Meaning and Definition of Find definitions for: fld. Pronunciation: [key] field. fluid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. F.L.B. fl dr Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language