Door parts are essential components of a door that allow it to open and close properly. LATCHES, which are seven letters long, are used to secure the door in a closed position. Jambs, five letters long, are the vertical sides of a door frame. HINGES, six letters long, are used to attach the door to the door frame. Knobs, five letters long, are used to open and close the door. SILLS, five letters long, are the bottom part of the door frame. Panels, six letters long, are the flat pieces of material that make up the door.