covert vs shoji

covert and shoji both are nouns.

Word	Noun	Adjective	Verb	Adverb
covert	Yes	Yes	No	No
shoji	Yes	No	No	No

As nouns, shoji is a hyponym of covert; that is, shoji is a word with a more specific, narrower meaning than covert:

Other hyponyms of covert include blind, camouflage, stalking-horse.

covert (noun)	shoji (noun)
a covering that serves to conceal or shelter something	a translucent screen made of a wooden frame covered with rice paper
a flock of coots

covert (adjective)	shoji (adjective)
secret or hidden; not openly practiced or engaged in or shown or avowed
(of a wife) being under the protection of her husband