A "pencere" is the Turkish word for "window." It is an opening in a wall that allows light and air to enter a building while providing a view of the outside. Windows can be made from various materials, including glass, wood, and metal, and they come in different shapes and sizes. Windows serve multiple purposes, such as enhancing natural light, improving ventilation, and contributing to the aesthetic appeal of a structure. They can be found in residential buildings, commercial spaces, and vehicles, playing a crucial role in architecture and design.