/ Dictionary / Index W Waterloo: Meaning and Definition of Find definitions for: Wa•ter•loo Pronunciation: (wô'tur-l", wot'ur-, wô"tur-l', wot"ur- for 1 also Flem. vä'tur-lō"), [key] — n. a village in central Belgium, south of Brussels: Napoleon decisively defeated here on June 18, 1815. a decisive or crushing defeat: The candidate met her Waterloo in the national elections. a city in E Iowa. 75,985. a city in SE Ontario, in S Canada. 49,428. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: waterloo (Thesaurus) waterlogged water loss Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language