Definition of "decoration" in English

noun

1. The act of adorning, embellishing, or honoring; ornamentation.

2. Any item that adorns, enriches, or beautifies; something added by way of embellishment or ornamentation.

3. Specifically, any mark of honor to be worn upon the person, as a medal, cross, or ribbon of an order of knighthood, bestowed for services in war, great achievements in literature, art, etc.

4. (biochemistry, immunology) The use of exotic sugars as decoys to distract the immune system of a host

5. (Hong Kong) Refurbishment; renovation