decoration consisting of the layout and furnishings of a livable interior
"The sudden renovation completely changed our decor, replacing the cozy vintage furniture with sleek modern pieces."
The style of decoration of a room or building.
"The hotel manager decided to update the lobby's decor to reflect a more modern aesthetic."
In plain English: Decor is the style and arrangement of furniture, decorations, and other items used to make a room look nice.
"The living room has a modern decor with clean lines and neutral colors."
Usage: Use "decor" to refer specifically to the arrangement and style of items within a room or space, such as furniture and artwork. It is often paired with words like "interior decor" but should not be used as a general verb or to describe personal taste alone.
The word decor comes directly from the French term décor, which originally referred to the furnishings and decorations of a room or stage. It entered English with its current meaning related to interior design and aesthetic arrangement.