A shine or polish on something that has been polished, or a shiny layer applied to a surface.

(uncountable) The making of something bright, shiny, and smooth by, or (by extension) as if by, rubbing; (countable) an instance of this; a burnishing, a polishing, a shining.

Make something bright, shiny, and smooth by rubbing; to remove the velvet from a stag's antlers by rubbing them against something; to make someone or something appear positive and highly respected.

To burnish is to become bright, glossy, and smooth, shining forth and gleaming.

Of a person's body: to grow large or stout; to fatten, to fill out.

(by extension) Of a thing: to increase in size; to expand, to spread out, to swell.