subscriber line vs connective

subscriber line and connective both are nouns.

Word	Noun	Adjective	Verb	Adverb
subscriber line	Yes	No	No	No
connective	Yes	Yes	No	No

As nouns, connective is a hypernym of subscriber line; that is, connective is a word with a broader meaning than subscriber line:

Other hypernyms of subscriber line include connecter, connection, connector, connexion.

subscriber line (noun)	connective (noun)
a telephone connection	an instrumentality that connects
	an uninflected function word that serves to conjoin words or phrases or clauses or sentences

subscriber line (adjective)	connective (adjective)
	connecting or tending to connect