Question: what are the names of the parts of a window?
Answer: Frame. The framework that surrounds and supports the entire window system, which is comprised of the head, jamb, and sill.
Glass. The framed sheet of glass within a window frame.
Head. The main horizontal part that forms the top of the window frame.
Jambs. ... 
Sill. ... 
Jambliner. ... 
Sash. ... 
Rails.