introductoriness vs priority

introductoriness and priority both are nouns.

Word	Noun	Adjective	Verb	Adverb
introductoriness	Yes	No	No	No
priority	Yes	No	No	No

As nouns, priority is a hypernym of introductoriness; that is, priority is a word with a broader meaning than introductoriness:

introductoriness: The quality of being introducing; of giving a preview or idea of.
priority: preceding in time

Other hypernyms of introductoriness include antecedence, antecedency, anteriority, precedence, precedency.

introductoriness (noun)	priority (noun)
The quality of being introducing; of giving a preview or idea of.	preceding in time
	status established in order of importance or urgency