overrefine vs polish

overrefine is not a noun while polish is a noun.

Word	Noun	Adjective	Verb	Adverb
overrefine	No	No	Yes	No
polish	Yes	No	Yes	No

As verbs, polish is a hypernym of overrefine; that is, polish is a word with a broader meaning than overrefine:

Other hypernyms of overrefine include down, fine-tune, refine.

overrefine (noun)	polish (noun)
	the property of being smooth and shiny
	a highly developed state of perfection; having a flawless or impeccable quality
	a preparation used in polishing

overrefine (verb)	polish (verb)
refine too much or with excess of subtlety	bring to a highly developed, finished, or refined state
	improve or perfect by pruning or polishing
	make (a surface) shine