polling booth vs cubicle

polling booth and cubicle both are nouns.

Word	Noun	Adjective	Verb	Adverb
polling booth	Yes	No	No	No
cubicle	Yes	No	No	No

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

polling booth: a temporary booth in a polling place which people enter to cast their votes
cubicle: small area set off by walls for special use

Other hypernyms of polling booth include booth, kiosk, stall.

polling booth (noun)	cubicle (noun)
a temporary booth in a polling place which people enter to cast their votes	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