reinforcement vs device

reinforcement and device both are nouns.

Word	Noun	Adjective	Verb	Adverb
reinforcement	Yes	No	No	No
device	Yes	No	No	No

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

reinforcement (noun)	device (noun)
an act performed to strengthen approved behavior	any clever maneuver
a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission	an instrumentality invented for a particular purpose
a device designed to provide additional strength	an emblematic design (especially in heraldry)
(psychology) a stimulus that strengthens or weakens the behavior that produced it	any ornamental pattern or design (as in embroidery)
information that makes more forcible or convincing	something in an artistic work designed to achieve a particular effect