/ Dictionary / Index F forthwith: Meaning and Definition of Find definitions for: forth•with Pronunciation: (fôrth"with', -wi', fōrth"-), [key] — adv. immediately; at once; without delay: Any official accused of dishonesty should be suspended forthwith. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: forthwith (Thesaurus) Fort Huachuca fortieth Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language