1: to guard from injury or danger 2 a: to give shelter or protection to with or as if with a screen b: to separate with or as if with a screen; also: to shield (an opponent) from a play or from view of a play 3 a: to pass (as coal, gravel, or ashes) through a screen to separate the fine part from the coarse; also: to remove by a screen b (1): to examine usually methodically in order to make a separation into different groups (2): to select or eliminate by a screening process (3): to test or examine for the presence of something (as a disease) <patients were screened for hepatitis> 4: to provide with a screen to keep out pests (as insects) 5 a (1): to present (as a motion picture) for viewing on a screen (2): to view the presentation of (as a motion picture) b: to present in a motion pictureintransitive verb1: to appear on a motion-picture screen 2: to provide a screen in a game or sport