radiance vs burnish

radiance and burnish both are nouns.

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

As nouns, burnish is a hyponym of radiance; that is, burnish is a word with a more specific, narrower meaning than radiance:

Other hyponyms of radiance include gleam, gleaming, glow, lambency, luster, lustre, sheen, shininess, gloss, glossiness, polish.

radiance (noun)	burnish (noun)
the quality of being bright and sending out rays of light	the property of being smooth and shiny
the amount of electromagnetic radiation leaving or arriving at a point on a surface
an attractive combination of good health and happiness

radiance (verb)	burnish (verb)
	polish and make shiny