ETYM Old Eng. scren, Old Fren. escrein, escran, French écran, of uncertain origin; cf. German schirm a screen, Old High Germ. scirm, scerm a protection, shield, or German schragen a trestle, a stack of wood, or German schranne a railing.
1. A covering that serves to conceal or shelter something; SYN. cover, covert, concealment.
2. A white or silvered surface where pictures can be projected for viewing; SYN. silver screen, projection screen.
3. A decorative frame or panel serving to divide a space.
4. A metallic netting mounted in a frame and covering windows or doors for protection (especially against insects).
5. The surface of the large end of a cathode-ray tube on which an electronically created image is formed; SYN. crt screen.

Or monitor; Output device on which a computer displays information for the benefit of the operator. The commonest type is the cathode-ray tube (CRT), which is similar to a television screen. Portable computers often use liquid crystal display (LCD) screens. These are harder to read than CRTs, but require less power, making them suitable for battery operation.

1. To examine in order to test suitability; SYN. screen out, sieve, sort.
2. To examine methodically; test for suitability.
3. To prevent from entering, as of light; SYN. block out.
4. To project onto a screen for viewing; of films.
5. To test or examine for the presence of disease or infection; SYN. test.