connecter vs instrumentality

connecter and instrumentality both are nouns.

Word	Noun	Adjective	Verb	Adverb
connecter	Yes	No	No	No
instrumentality	Yes	No	No	No

As nouns, instrumentality is a hypernym of connecter; that is, instrumentality is a word with a broader meaning than connecter:

connecter: an instrumentality that connects
instrumentality: an artifact (that is instrumental in accomplishing some end) for accomplishing some end

Other hypernyms of connecter include instrumentation, means.

connecter (noun)	instrumentality (noun)
an instrumentality that connects	an artifact (that is instrumental in accomplishing some end) for accomplishing some end
	the quality of being instrumental for some purpose
	a subsidiary organ of government created for a special purpose