Order vs acolyte

Order and acolyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
Order	Yes	No	No	No
acolyte	Yes	No	No	No

As nouns, acolyte is a hyponym of Order; that is, acolyte is a word with a more specific, narrower meaning than Order:

Order: (usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy
acolyte: someone who assists a priest or minister in a liturgical service; a cleric ordained in the highest of the minor orders in the Roman Catholic Church but not in the Anglican Church or the Eastern Orthodox Churches

Other hyponyms of Order include anagnost, deacon, doorkeeper, ostiarius, ostiary, exorcist, lector, reader, priest, subdeacon.

Order (noun)	acolyte (noun)
(usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy	someone who assists a priest or minister in a liturgical service; a cleric ordained in the highest of the minor orders in the Roman Catholic Church but not in the Anglican Church or the Eastern Orthodox Churches