soda maker vs device

soda maker and device both are nouns.

Word	Noun	Adjective	Verb	Adverb
soda maker	Yes	No	No	No
device	Yes	No	No	No

As nouns, device is a hypernym of soda maker; that is, device is a word with a broader meaning than soda maker:

soda maker (noun)	device (noun)
a device that carries out carbonation.	any clever maneuver
	an instrumentality invented for a particular purpose
	an emblematic design (especially in heraldry)
	any ornamental pattern or design (as in embroidery)
	something in an artistic work designed to achieve a particular effect