relay vs electromagnet

relay and electromagnet both are nouns.

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

relay (noun)	electromagnet (noun)
the act of passing something along from one person or group to another	a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet
electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit
a race between teams; each member runs or swims part of the distance
a crew of workers who relieve another crew
a fresh team to relieve weary draft animals

relay (verb)	electromagnet (verb)
pass along
control or operate by relay