polish vs smoothness

polish and smoothness both are nouns.

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

As nouns, smoothness is a hypernym of polish; that is, smoothness is a word with a broader meaning than polish:

Other hypernyms of polish include effulgence, radiance, radiancy, refulgence, refulgency, shine.

polish (noun)	smoothness (noun)
the property of being smooth and shiny	a texture without roughness; smooth to the touch
a highly developed state of perfection; having a flawless or impeccable quality	the quality of having a level and even surface
a preparation used in polishing	the quality of being free from errors or interruptions
	the quality of being bland and gracious or ingratiating in manner
	powerful and effective language

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