ecclesiasticism vs religion

ecclesiasticism and religion both are nouns.

Word	Noun	Adjective	Verb	Adverb
ecclesiasticism	Yes	No	No	No
religion	Yes	No	No	No

As nouns, religion is a hypernym of ecclesiasticism; that is, religion is a word with a broader meaning than ecclesiasticism:

ecclesiasticism: religion appropriate to a church and to ecclesiastical principles and practices
religion: a strong belief in a supernatural power or powers that control human destiny

Other hypernyms of ecclesiasticism include faith, religious belief.

ecclesiasticism (noun)	religion (noun)
excessive adherence to ecclesiastical forms and activities	a strong belief in a supernatural power or powers that control human destiny
religion appropriate to a church and to ecclesiastical principles and practices	an institution to express belief in a divine power