electrical relay vs electromagnet

electrical relay and electromagnet both are nouns.

Word	Noun	Adjective	Verb	Adverb
electrical relay	Yes	No	No	No
electromagnet	Yes	No	No	No

electrical relay (noun)	electromagnet (noun)
electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit	a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet