<p><strong>Noun</strong></p><ul><li>a grating or openwork barrier, as for a gate, usually of metal and often of decorative design.</li><li>an opening, usually covered by grillwork, for admitting air to cool the engine of an automobile or the like; radiator grille.</li><li>any of various perforated screens, sheets, etc., used to cover something, as on a radio for protecting the amplifier or in cryptography for coding purposes.</li><li>a ticket window covered by a grating.</li><li>Court Tennis: a square-shaped winning opening on the hazard side of the court. Compare dedans (def 1), winning gallery.</li></ul>