perfect vs meliorate

perfect is a noun but meliorate is not a noun.

Word	Noun	Adjective	Verb	Adverb
perfect	Yes	Yes	Yes	No
meliorate	No	No	Yes	No

As verbs, meliorate is a hypernym of perfect; that is, meliorate is a word with a broader meaning than perfect:

Other hypernyms of perfect include ameliorate, amend, better, improve.

perfect (noun)	meliorate (noun)
a tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect)

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

perfect (verb)	meliorate (verb)
make perfect or complete	get better
	to make better