The term 'Door Frame Part' refers to the components that make up a door frame. The most common parts are the JAMB (4 letters), LINTEL (6 letters), and jambs (5 letters). The JAMB is the vertical side of the door frame, while the LINTEL is the horizontal top part of the frame. The jambs are the two vertical pieces that form the sides of the frame. All three parts are essential for a secure and stable door frame.