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Signs for SCREEN
Definition (screening): the evaluation or investigation of something as part of a methodical survey, to assess suitability for a particular role or purpose.
Related signs: EVALUATION.
Other meaning, "a viewing or showing of a video, movie, or TV program", use of these possibilities: MOVIE, VIDEO, TELEVISION.
Use MONITOR if you mean a flat surface or panel (such as a smartphone, television, or computer) on which pictures or words are displayed.
To protect, hide, or conceal from danger or harm: SECURE, PROTECT, SHIELD. With something: SUNSCREEN.
Written ASL
[Note: ASL writing is not an official standard. This sign language writing remains in a state of open space to allow room for experiment, evolution, and improvement.]

Written ASL digit for "SCREENING" contributed by the ASLwrite community, 2018.