sock·et 
/ˈsɑ:kət/ noun
plural sock·ets /ˈsɑ:kət/ noun [count] 1 a : a device in a wall into which an electric cord can be plugged : outlet
▪ She plugged the lamp into the socket.
b : an opening on a piece of electrical equipment into which a plug, lightbulb, etc., fits
▪ He screwed the lightbulb into the socket. 2 : a hollow part in a bone that holds an eye, a tooth, or another bone
▪ an inflamed tooth socket ▪ the hip socket ▪ His shoulder popped out of its socket.
▪ She plugged the lamp into the socket.
b : an opening on a piece of electrical equipment into which a plug, lightbulb, etc., fits
▪ He screwed the lightbulb into the socket.
▪ an inflamed tooth socket ▪ the hip socket ▪ His shoulder popped out of its socket.
