/ Dictionary / Index W water wagon: Meaning and Definition of Find definitions for: wa'ter wag"on Pronunciation: [key] a wagon used to transport water, as in military field operations or on a construction site. See(def. 12). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Watervliet waterward Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language