Meaning of “decorate” - Learner’s Dictionary

decorate

verb uk us /ˈdekəreɪt/
MAKE ATTRACTIVE [ T ]

B1 to make something look more attractive by putting things on it or around it:

They decorated the room with balloons for her party.
PAINT [ I, T ]

B1 UK to put paint or paper on the walls or other surfaces of a room or building:

The whole house needs decorating.
be decorated

to be given a medal (= small, metal disc) as official respect for military action:

He was decorated for bravery.

(Definition of “decorate” from the Cambridge Learner’s Dictionary © Cambridge University Press)