Decoration

noun

1. The act of adorning, embellishing, or honoring; ornamentation.
2. That which adorns, enriches, or beautifies; something added by way of embellishment; ornament.
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. The use of exotic sugars as decoys to distract the immune system of a host