Breadcrumb Home > Dictionary > Index O overspill: Meaning and Definition of Find definitions for: o•ver•spill Pronunciation: (v.ō"vur-spil'n.ō'vur-spil"), [key] — v., n. -spilled -spilt, -spill•ing, —v.i. to spill over. —n. the act of spilling over. something that spills over. overflow. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: overspill (Thesaurus) overspend overspin TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: redoubtable Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language