A screen is a flat vertical surface on which pictures or words are shown. Television sets and computers have screens, and films are shown on a screen in cinemas.
N-SING
(总称)电影,电视
You can refer to film or television as the screen .
A screen is a vertical panel which can be moved around. It is used to keep cold air away from part of a room, or to create a smaller area within a room.
If you screen your telephone calls, calls made to you are connected to an answering machine or are answered by someone else, so that you can choose whether or not to speak to the people phoning you.