What is the meaning of Decoration?

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

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

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.

The use of exotic sugars as decoys to distract the immune system of a host

Refurbishment; renovation

Source: wiktionary.org