telephone box vs kiosk

telephone box and kiosk both are nouns.

Word	Noun	Adjective	Verb	Adverb
telephone box	Yes	No	No	No
kiosk	Yes	No	No	No

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

Other hypernyms of telephone box include booth, cubicle, stall.

telephone box (noun)	kiosk (noun)
booth for using a telephone	small area set off by walls for special use