Cuando se refiere al material, glass es una palabra incontable. Por lo tanto, no tiene formas plurales o singulares. Ejemplo: The entire building is covered in glass (y no: in a glass). Otro ejemplo: We need three pieces of glass for the three windows in that room we are renovating.
windownoun
windows
ventana (de un edificio o una computadora), ventanilla (de un vehículo o avión), vitrina (de una tienda)
A window decorated with flowers on the windowsill
Example sentences of
window
noun
•She opened a window to let in some air.
•I looked out the window and saw a deer.
•He used vinegar and water to wash the windows.
•He accidentally broke a window.
•Can you roll down the car window?
More examples
•The windows along 5th Avenue were all decorated for Christmas.
•I saw a beautiful dress in the window.
•He sits behind a window and sells movie tickets.
•Make sure the address shows through the window in the envelope.
•A window opened in the fog and we could finally see the ocean.