S: (n) paint, pigment (a substance used as a coating to protect or decorate a surface (especially a mixture of pigment suspended in a liquid); dries to form a hard coating) "artists use `paint' and `pigment' interchangeably"
S: (n) patina (a fine coating of oxide (produced by oxidation over a long period of time) on the surface of a metal (particularly copper))
S: (n) patina (a gloss or sheen on wooden furniture produced by age, polishing, or handling)
S: (n) patina (an acquired change in the appearance of something (other than metal or wood)) "a patina of frost"; "a patina of good breeding"