装飾は英語で
ornament

英語の定義

ornament
1. n. An element of decoration; that which embellishes or adorns.
2. n. A Christmas tree decoration.
3. n. (music) A musical flourish that is unnecessary to the overall melodic or harmonic line, but serves to decorate or "ornament" that line.
4. n. (Christianity, in the plural) The articles used in church services.
5. n. (biology) A characteristic that has a decorative function (typically in order to attract a mate)
6. v. To decorate.
We will ornament the windows with trim to make the room seem brighter.
7. v. To add to.
The editor ornamented his plain writing, making it fancier but less clear.

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