Burnish

[Sarah]

To cause to shine; to make smooth and bright; to polish;specifically, to polish by rubbing with something hard and smooth;as, to burnish brass or paper.The frame of burnished steel, that east a glare From far, and seemedto thaw the freezing air. Dryden.Now the village windows blaze, Burnished by the setting sun.Cunningham.Burnishing machine, a machine for smoothing and polishing bycompression, as in making paper collars.

[Sarah]

slightly burnt.

[Renato]

Polish (something, especially metal) by rubbing.

[Monty]

Its [burning] [hot] [outside]