/ Dictionary / Index A a fortiori*: Meaning and Definition of Find definitions for: a for•ti•o•ri Pronunciation: (ä fōr"ti-ō'rē Eng. ā fôr"shē-ôr'ī, ā fōr"shē-ōr'ī), [key] — Latin. Latin. for a still stronger reason; even more certain; all the more. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aforetime afoul Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language