Breadcrumb Home > Thesaurus > O Synonyms of overfill Find synonyms for: Verb 1. overfill, fill, fill up, make full usage: fill beyond capacity; "overfill the baskets" WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of overfill (Dictionary) 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: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language