Component/kəmˈpəʊnənt/ Definition 1 of 5Pro Tip 1/2Part of Whole Emphasizes that 'component' means an individual part within a larger entity. A bicycle wheel is a crucial component of the bike. Pro Tip 2/2Not Standalone A component is generally not functional when separated from the main object or system. A remote control is an inoperative component without the TV.