sock·et / ˈsäkit/ • n. 1. a natural or artificial hollow into which something fits or in which something revolves: the eye socket. ∎ the part of the head of a golf club into which the shaft is fitted.2. an electrical device receiving a plug or light bulb to make a connection.• v. (-et·ed, -et·ing) [tr.] 1. place in or fit with a socket.2. Golf old-fashioned term for shank.