Synonyms for Grille (same or very similar meaning)
WordNet sense 1 (small opening (like a window in a door) through which business can be transacted):
lattice, wicket
WordNet sense 2 (grating that admits cooling air to car's radiator):
radiator grille
WordNet sense 3 (a framework of metal bars used as a partition or a grate):
grill, grillwork
From the ODE community, based on WordNet
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