screen vs window blind

screen and window blind both are nouns.

Word	Noun	Adjective	Verb	Adverb
screen	Yes	No	Yes	No
window blind	Yes	No	No	No

As nouns, window blind is a hyponym of screen; that is, window blind is a word with a more specific, narrower meaning than screen:

Other hyponyms of screen include curtain, drape, drapery, mantle, pall, shutter, blinder, blinker, winker.

screen (noun)	window blind (noun)
a protective covering consisting of netting; can be mounted in a frame	a blind for privacy or to keep out light
a covering that serves to conceal or shelter something
a strainer for separating lumps from powdered material or grading particles
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

screen (verb)	window blind (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