interior decoration is a noun meaning "decoration consisting of the layout and furnishings of a livable interior". It carries 2 recorded senses.
decoration consisting of the layout and furnishings of a livable interior
the trade or act of decorating the interior of a building or room, especially with regard to color combination, paint, fabrics, carpeting, etc.
Definitions, synonyms and semantic relations for interior decoration come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.