How do you spell Tinning

Available Definitions:
1)  n. - The act, art, or process of covering or coating anything with melted tin, or with tin foil, as kitchen utensils, locks, and the like.
2)  n. - The covering or lining of tin thus put on.
3)  n. - Money.
4)  v. t. - To cover with tin or tinned iron, or to overlay with tin foil.