The crossword solution for the term 'OUTSIDE PART' is FRAME, which is a five-letter word. A FRAME is a structure that provides support and shape to an object, such as a building or a vehicle. It is usually made of metal, wood, or plastic, and is often used to hold glass or other materials in place. Frames are also used to create the shape of a picture or a window. In addition, frames can be used to provide support for furniture, such as chairs and tables.