decoration
US /ˌdek.ərˈeɪ.ʃən/
UK /ˌdek.ərˈeɪ.ʃən/

1.
the action or process of decorating something
:
•
The decoration of the hall took several hours.
•
She is responsible for the interior decoration.
2.
something used for decorating
:
•
The Christmas tree was covered with beautiful decorations.
•
She bought some new wall decorations for her living room.