ne plus ultra vs perfect

ne plus ultra and perfect both are nouns.

Word	Noun	Adjective	Verb	Adverb
ne plus ultra	Yes	No	No	No
perfect	Yes	Yes	Yes	No

ne plus ultra (noun)	perfect (noun)
the state of being without a flaw or defect	a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)

ne plus ultra (adjective)	perfect (adjective)
	being complete of its kind and without defect or blemish
	precisely accurate or exact
	without qualification; used informally as (often pejorative) intensifiers

ne plus ultra (verb)	perfect (verb)
	make perfect or complete