1. frameworks of parallel or crossed bars, typically used as covers for drains or openings
Usage: plural of grating
2. harsh, unpleasant sounds or sensations
Usage: plural of grating; often used metaphorically

Examples

• The storm drain gratings were clogged with fallen leaves.
• Metal gratings covered the subway ventilation shafts.
• Workers installed new gratings over the basement windows.
• The gratings on his nerves made him increasingly irritable.
• She couldn’t stand the gratings of chalk on the blackboard.
• The building’s gratings needed regular maintenance to prevent rust.