ignition interlock vs device

ignition interlock and device both are nouns.

Word	Noun	Adjective	Verb	Adverb
ignition interlock	Yes	No	No	No
device	Yes	No	No	No

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

ignition interlock: a device that prevents an automotive engine from starting
device: an instrumentality invented for a particular purpose

ignition interlock (noun)	device (noun)
a device that prevents an automotive engine from starting	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