/ Dictionary / Index S spillage: Meaning and Definition of Find definitions for: spill•age Pronunciation: (spil'ij), [key] — n. the act or process of spilling. an amount that spills or is spilled. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spillage (Thesaurus) spill Spillane Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language