Does wood silver aluminum copper gold and steel rust?
(For the purposes of answering this question I am rephrasing it
as: "Which, if any, of the following materials 'rust': wood,
silver, aluminum, copper, gold, and steel")
The word "rust" (a verb) usually refers to the oxidation of
iron, or most kinds of steel, to form an oxide of that material
(i.e., iron oxide) on the surface, also called "rust" (a noun).
More generally, the oxidation of any metal could be called
rusting, in which case silver, aluminum, and copper all "rust" to
differing degrees. To the best of my knowledge, gold and stainless
steel do not oxidize under ordinary atmospheric conditions.
(Silver "rust" is usually called "tarnish", copper "rust"
"verdigris", and aluminum "rust" "aluminum oxide".)
Wood is not a metal (nor an element), and its oxidation is
ordinarily a fire producing ash and smoke, complex compounds
containing many oxides, but never considered "rust".