Subparts are individual components that make up a larger whole. They can be physical objects, such as the parts of a car, or abstract concepts, such as the sections of a book. The term 'subparts' is often used to refer to the units that make up a larger system or structure. In this case, the crossword solution for the term 'subparts' is 'units, ' which refers to the individual components that make up a larger system or structure.