Refers to the outer surface, covering, or protective layer of an object, building, vehicle, or product. Can be used for packaging, architectural cladding, or armor plating.
外装 refers to the exterior finish or outside appearance of a building or vehicle, the opposite of インテリア's inside space.
Etymology
Compound of 外 (outside) and 装 (attire, equipment, decoration). The exact historical derivation is uncertain, but the kanji combination naturally conveys 'outer covering' or 'exterior equipment'.
