Breadcrumb Home > Thesaurus > P Synonyms of preheat Find synonyms for: Verb1. preheat, heat, heat upusage: heat beforehand; "Preheat the oven!"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of preheat (Dictionary) ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language