concatenation vs connexion

concatenation and connexion both are nouns.

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

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

concatenation: the act of linking together as in a series or chain
connexion: the act of bringing two things into contact (especially for communication)

Other hypernyms of concatenation include connection, joining.

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

concatenation: the linking together of a consecutive series of symbols or events or ideas etc
connexion: a relation between things or events (as in the case of one causing the other or sharing features with it)

Other hypernyms of concatenation include connectedness, connection.

concatenation (noun)	connexion (noun)
the act of linking together as in a series or chain	the act of bringing two things into contact (especially for communication)
a series of things depending on each other as if linked together	shifting from one form of transportation to another
the linking together of a consecutive series of symbols or events or ideas etc	an instrumentality that connects
the state of being linked together as in a chain; union in a linked series	the process of bringing ideas or events together in memory or imagination
	a relation between things or events (as in the case of one causing the other or sharing features with it)
	a connecting shape