junction vs connexion

junction and connexion both are nouns.

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

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

junction: an act of joining or adjoining things
connexion: the act of bringing two things into contact (especially for communication)

Other hypernyms of junction include connection, joining.

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

Other hypernyms of junction include connecter, connection, connective, connector.

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

junction: the shape or manner in which things come together and a connection is made
connexion: a connecting shape

Other hypernyms of junction include connection, link.

junction (noun)	connexion (noun)
an act of joining or adjoining things	the act of bringing two things into contact (especially for communication)
the place where two or more things come together	shifting from one form of transportation to another
something that joins or connects	an instrumentality that connects
the shape or manner in which things come together and a connection is made	the process of bringing ideas or events together in memory or imagination
the state of being joined together	a relation between things or events (as in the case of one causing the other or sharing features with it)
	a connecting shape