confederate vs united

confederate is a noun but united is not a noun.

Word	Noun	Adjective	Verb	Adverb
confederate	Yes	Yes	Yes	No
united	No	Yes	No	No

confederate (noun)	united (noun)
a person who joins with another in carrying out some plan (especially an unethical or illegal plan)
someone who assists in a plot

confederate (adjective)	united (adjective)
united in a confederacy or league	characterized by unity; being or joined into a single entity
	of or relating to two people who are married to each other
	involving the joint activity of two or more

confederate (verb)	united (verb)
form a group or unite
form a confederation with; of nations