administration vs allegiant

administration is a noun but allegiant is not a noun.

Word	Noun	Adjective	Verb	Adverb
administration	Yes	No	No	No
allegiant	No	Yes	No	No

administration (noun)	allegiant (noun)
a method of tending to or managing the affairs of some group of people (especially the group's business affairs)
the act of administering medication
the act of meting out justice according to the law
the act of governing; exercising authority
the persons (or committees or departments etc.) who make up a body for the purpose of administering something
the tenure of a president

administration (adjective)	allegiant (adjective)
	steadfast in devotion (especially to your lawful monarch or government)