socket
Word family adjectivesocketednounsocket
sock·et /ˈsɒkɪt $ ˈsɑː-/ ●○○ noun [countableC] 2 the place on a piece of electrical equipment that you put a plug or a light bulb into 〔电器上的〕插口,插孔 Origin socket (1200-1300) Anglo-French soket, from Old French soc “broad curved blade of a plow”