Other forms: gilded; gilding; gilds
To gild something is to cover it with gold. You gild an object in order to decorate it — or just to show off your wealth.
From forks to picture frames, gilding can make objects seem ritzy, glamorous, and more valuable. However, some things in life just don’t need a coat of gold. If someone says you are “gilding the lily,” they mean that you are trying to improve on something that is already perfect.