buff vs burnish

buff and burnish both are nouns.

Word	Noun	Adjective	Verb	Adverb
buff	Yes	Yes	Yes	No
burnish	Yes	No	Yes	No

As verbs, buff and burnish are synonyms defined as:

Other synonyms of buff include furbish.

buff (noun)	burnish (noun)
an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)	the property of being smooth and shiny
a medium to dark tan color
bare skin
an ardent follower and admirer
a soft thick undyed leather from the skins of e.g. buffalo or oxen

buff (adjective)	burnish (adjective)
of the yellowish-beige color of buff leather

buff (verb)	burnish (verb)
polish and make shiny	polish and make shiny
strike, beat repeatedly