cover, covering, screening, masking(noun)
the act of concealing the existence of something by obstructing the view of it
"the cover concealed their guns from enemy aircraft"
the blocking of one sensation resulting from the presence of another sensation
"he studied auditory masking by pure tones"
masking piece, masking(noun)
scenery used to block the audience's view of parts of the stage that should not be seen
In art, craft, and engineering, masking is the use of materials to protect areas from change, or to focus change on other areas. Masking can describe either the techniques and materials used to control the development of a work of art by protecting a desired area from change; or a phenomenon that causes a sensation to be concealed from conscious attention. The term is derived from the word "mask", in the sense that it hides the face from view.
The numerical value of masking in Chaldean Numerology is: 1
The numerical value of masking in Pythagorean Numerology is: 2