1. a grating or latticed screen, typically made of metal, used as a barrier or decorative element
2. the front opening or protective covering of a vehicle (such as a car or truck) that allows air to reach the radiator
3. a metal or wooden framework with bars or openings, used to cover a window, door, or opening for security or ventilation

Examples

• The ornate grille on the chapel window featured intricate geometric patterns.
• The car's chrome grille gleamed in the sunlight.
• A protective grille covered the air vent to prevent debris from entering.
• The restaurant's entrance was secured with a metal grille at night.
• She peered through the grille to see into the locked room.
• The radiator grille on the vintage truck was heavily rusted.
• Decorative grilles separated the different sections of the building's facade.