The verb decorate has 4 senses (first 1 from tagged texts)
1. (6) decorate, adorn, grace, ornament, embellish, beautify -- (make more attractive by adding ornament, colour, etc.; "Decorate the room for the party"; "beautify yourself for the special day")
2. deck, adorn, decorate, grace, embellish, beautify -- (be beautiful to look at; "Flowers adorned the tables everywhere")
3. decorate -- (award a mark of honor, such as a medal, to; "He was decorated for his services in the military")
4. dress, decorate -- (provide with decoration; "dress the windows")