intersection vs junction

intersection and junction both are nouns.

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

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

intersection (noun)	junction (noun)
the act of intersecting (as joining by causing your path to intersect your target's path)	an act of joining or adjoining things
a junction where one street or road crosses another	the place where two or more things come together
a point where lines intersect	something that joins or connects
a representation of common ground between theories or phenomena	the shape or manner in which things come together and a connection is made
the set of elements common to two or more sets	the state of being joined together
a point or set of points common to two or more geometric configurations