/ Thesaurus / R Synonyms of radiator grille Find synonyms for: Noun1. grille, radiator grille, grate, gratingusage: grating that admits cooling air to car's radiatorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language