What is Decorate ?
Decorate is (verb) 1. to paint a room or a building or put new wallpaper in a room She can’t come to the phone she’s decorating the kitchen. 2. to cover something with pretty or colourful things to make it look attractive or to celebrate an occasion The streets were decorated with flags. 3. to put icing on a cake Christmas cakes are decorated with white icing. 4. to award someone a medal He was decorated for bravery.
source: Easier English, Student Dictionary Upper Intermediate Level