Coat of Gold is a term used to describe a type of decoration or finish that is applied to an object, usually metal, to give it a golden appearance. GILT and GILD are two words that are often used interchangeably to refer to this type of decoration. GILT is the process of applying a thin layer of gold to an object, while gilding is the process of applying a thicker layer of gold. Both processes are used to create a luxurious and eye-catching finish.