Holy Communion vs manduction

Holy Communion and manduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
Holy Communion	Yes	No	No	No
manduction	Yes	No	No	No

As nouns, Holy Communion and manduction are synonyms defined as:

Holy Communion and manduction: the act of participating in the celebration of the Eucharist

Other synonyms of Holy Communion include Communion, sacramental manduction.

Holy Communion (noun)	manduction (noun)
the act of participating in the celebration of the Eucharist	biting and grinding food in your mouth so it becomes soft enough to swallow
	the act of participating in the celebration of the Eucharist