Meaning of "screen" in Essential American English Dictionary

screen

noun us /skrin/

A2 the part of a television or computer that shows images or writing:

I spend most of my day working in front of a computer screen.

A2 a large, flat surface where a film or an image is shown

movies:

She first appeared on screen in 1965.

(Definition of “screen” from the Webster's Essential Mini Dictionary © Cambridge University Press)