polish vs furbish

polish is a noun but furbish is not a noun.

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

As verbs, furbish is a hyponym of polish; that is, furbish is a word with a more specific, narrower meaning than polish:

Other hyponyms of polish include Simonise, Simonize, sleek, slick, buff, burnish, gloss.

polish (noun)	furbish (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

polish (verb)	furbish (verb)
bring to a highly developed, finished, or refined state	polish and make shiny
improve or perfect by pruning or polishing
make (a surface) shine