screening vs screen

screening and screen both are nouns.

Word	Noun	Adjective	Verb	Adverb
screening	Yes	No	No	No
screen	Yes	No	Yes	No

screening (noun)	screen (noun)
the act of concealing the existence of something by obstructing the view of it	a protective covering consisting of netting; can be mounted in a frame
testing objects or persons in order to identify those with particular characteristics	a covering that serves to conceal or shelter something
fabric of metal or plastic mesh	a strainer for separating lumps from powdered material or grading particles
the display of a motion picture	partition consisting of a decorative frame or panel that serves to divide a space
	a protective covering that keeps things out or hinders sight
	the display that is electronically created on the surface of the large end of a cathode-ray tube
	a white or silvered surface where pictures can be projected for viewing
	the personnel of the film industry

screening (verb)	screen (verb)
	examine methodically
	protect, hide, or conceal from danger or harm
	prevent from entering
	separate with a riddle, as grain from chaff
	project onto a screen for viewing
	examine in order to test suitability
	test or examine for the presence of disease or infection