/ Dictionary / Index F fud: Meaning and Definition of Find definitions for: fud Pronunciation: (fud), [key] — n. Slang. a fuddy-duddy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fucus fuddle Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language