adjunct vs auxiliary

adjunct and auxiliary both are nouns.

Word	Noun	Adjective	Verb	Adverb
adjunct	Yes	Yes	No	No
auxiliary	Yes	Yes	No	No

As adjectives, adjunct and auxiliary are synonyms defined as:

Other synonyms of adjunct include accessory, adjuvant, ancillary, appurtenant.

adjunct (noun)	auxiliary (noun)
a construction that can be used to extend the meaning of a word or phrase but is not one of the main constituents of a sentence	someone who acts as assistant
something added to another thing but not an essential part of it
a person who is an assistant or subordinate to another

adjunct (adjective)	auxiliary (adjective)
of or relating to a person who is subordinate to another	functioning in a supporting capacity
furnishing added support	furnishing added support