component UK /kəmˈpəʊ.nənt/US /kəmˈpoʊ.nənt/adjective 2noun 2forms 1 adjective2 •Making up a larger whole. •Made up of smaller complete units in combination. noun2 •A smaller, self-contained part of a larger entity. Often refers to a manufactured object that is part of a larger device.A CPU is a component of a computer. •A connected subgraph that is not part of any larger connected subgraph. formscomponents