junction barrier vs junction

junction barrier and junction both are nouns.

Word	Noun	Adjective	Verb	Adverb
junction barrier	Yes	No	No	No
junction	Yes	No	No	No

As nouns, junction is a hypernym of junction barrier; that is, junction is a word with a broader meaning than junction barrier:

junction barrier: a junction unit for connecting 2 cables without the need for plugs
junction: something that joins or connects

Other hypernyms of junction barrier include conjunction.

junction barrier (noun)	junction (noun)
a junction unit for connecting 2 cables without the need for plugs	an act of joining or adjoining things
	the place where two or more things come together
	something that joins or connects
	the shape or manner in which things come together and a connection is made
	the state of being joined together