polish vs gloss

polish and gloss both are nouns.

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

As nouns, polish and gloss are synonyms defined as:

Other synonyms of polish include burnish, glossiness.

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

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

polish (noun)	gloss (noun)
the property of being smooth and shiny	the property of being smooth and shiny
a highly developed state of perfection; having a flawless or impeccable quality	an outward or token appearance or form that is deliberately misleading
a preparation used in polishing	an explanation or definition of an obscure word in a text
	an alphabetical list of technical terms in some specialized field of knowledge; usually published as an appendix to a text on that field

polish (verb)	gloss (verb)
bring to a highly developed, finished, or refined state	provide an interlinear translation of a word or phrase
improve or perfect by pruning or polishing	provide interlinear explanations for words or phrases
make (a surface) shine	give a deceptive explanation or excuse for
	give a shine or gloss to, usually by rubbing