/ Dictionary / Index S spray tank: Meaning and Definition of Find definitions for: spray' tank" Pronunciation: [key] a closed tank into which air is pumped to force out a liquid, esp. for a spray. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spray paint spread Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language