Sash: vertical and horizontal members made into a frame for holding glass.
Sealant: Liquids, pastes, or coatings used to seal edges of window frames.
Sill: The main horizontal member forming the bottom of the frame of a window or door.
Side light: A strip of vertical glass running alongside a door.
Spacer: the object that separates and maintains the space between the glass surfaces of insulating glass units IG.
Stop: A molding used to hold, position or separate window parts.