confessional vs cubicle

confessional and cubicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
confessional	Yes	No	No	No
cubicle	Yes	No	No	No

As nouns, cubicle is a hypernym of confessional; that is, cubicle is a word with a broader meaning than confessional:

Other hypernyms of confessional include booth, kiosk, stall.

confessional (noun)	cubicle (noun)
a booth where a priest sits to hear confessions	small area set off by walls for special use
	small individual study area in a library
	small room in which a monk or nun lives