data link vs electrical circuit

data link and electrical circuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
data link	Yes	No	No	No
electrical circuit	Yes	No	No	No

As nouns, electrical circuit is a hypernym of data link; that is, electrical circuit is a word with a broader meaning than data link:

data link: an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
electrical circuit: an electrical device that provides a path for electrical current to flow

Other hypernyms of data link include circuit, electric circuit.

data link (noun)	electrical circuit (noun)
an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data	an electrical device that provides a path for electrical current to flow