serve a, his, its, etc. purpose

serve (one's) purpose

To fit or satisfy someone's requirements; to be useful for or fit to achieve someone's aim, goal, or purpose. Well, it isn't a very pretty car, but it should serve our purpose just fine. Child: "But mom, I want a smartphone!" Mother: "Nonsense, the cell phone you already have serves your purpose just fine."
See also: purpose, serve

serve a, his, its, etc. ˈpurpose


serve the ˈpurpose (of doing something)

(British English also serve his, its, etc. ˈturn) be useful for a particular purpose or period of time; be good or useful enough for somebody: It’s not a very good radio, but it serves its purpose.He used his friends and then abandoned them when they had served their turn.
See also: purpose, serve