prompter's box vs kiosk

prompter's box and kiosk both are nouns.

Word	Noun	Adjective	Verb	Adverb
prompter's box	Yes	No	No	No
kiosk	Yes	No	No	No

As nouns, kiosk is a hypernym of prompter's box; that is, kiosk is a word with a broader meaning than prompter's box:

prompter's box: a booth projecting above the floor in the front of a stage where the prompter sits; opens toward the performers on stage
kiosk: small area set off by walls for special use

Other hypernyms of prompter's box include booth, cubicle, stall.

prompter's box (noun)	kiosk (noun)
a booth projecting above the floor in the front of a stage where the prompter sits; opens toward the performers on stage	small area set off by walls for special use