gild phoneticPhoneticPhoneticPhoneticPhoneticphonetic verb [T] 
to cover (a surface) with a thin layer of gold or a substance that looks like gold 
The statue, recently gilded, shone brightly in the mid-day sun.
FIGURATIVE Sunlight gilded (=brightly lit) the children's faces. [T]

(disapproving) If you gild the lily you try to improve or decorate something which is already perfect and therefore spoil it. 

gilded phoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticPhoneticphonetic adjective [not gradable] 
The gilded dome of the cathedral rises above the city.

Gilded can also mean rich or of a higher social class. 
The story revolves around the gilded youth of the 1920s and their glittering life-styles.
Both young princes are on the guest-list of this gilded occasion.
( Cambridge International Dictionary of English )

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