intercession vs involvement

intercession and involvement both are nouns.

Word	Noun	Adjective	Verb	Adverb
intercession	Yes	No	No	No
involvement	Yes	No	No	No

As nouns, involvement is a hypernym of intercession; that is, involvement is a word with a broader meaning than intercession:

Other hypernyms of intercession include engagement, involution, participation.

intercession (noun)	involvement (noun)
the act of intervening (as to mediate a dispute, etc.)	the act of sharing in the activities of a group
a prayer to God on behalf of another person	a sense of concern with and curiosity about someone or something
	a connection of inclusion or containment
	a usually secretive or illicit sexual relationship
	the condition of sharing in common with others (as fellows or partners etc.)