1. [noun] The act of adorning, embellishing, or honoring; ornamentation.
2. [noun] That which adorns, enriches, or beautifies; something added by way of embellishment; ornament.
3. [noun] 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. [noun] (biochemistry) (immunology) The use of exotic sugars as decoys to distract the immune system of a host
5. [noun] Something used to beautify.
6. [noun] An award for winning a championship or commemorating some other event.
7. [noun] The act of decorating something (in the hope of making it more attractive).