Noun

(en noun)

A large medal, usually decorative.

A cut of meat resembling a medallion.

(architecture) A round or oval frame (often made of Stucco) which contains a plastic or pictorial decoration of a facade, an interior, a piece of furniture or equipment.

A circular certificate used in some places to register a vehicle, especially a taxicab.

Noun

(en noun)

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

That which adorns, enriches, or beautifies; something added by way of embellishment; ornament.

*, chapter=12

, title= The Mirror and the Lamp , passage=There were many wooden chairs for the bulk of his visitors, and two wicker armchairs with red cloth cushions for superior people. From the packing-cases had emerged some Indian clubs, […], and all these articles […] made a scattered and untidy decoration that Mrs. Clough assiduously dusted and greatly cherished.}}

* 1994 , (Stephen Fry), (The Hippopotamus) Chapter 2

At the very moment he cried out, David realised that what he had run into was only the Christmas tree. Disgusted with himself at such cowardice, he spat a needle from his mouth, stepped back from the tree and listened. There were no sounds of any movement upstairs: no shouts, no sleepy grumbles, only a gentle tinkle from the decorations as the tree had recovered from the collision.

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.