de ‧ cor /ˈdeɪkɔː $ -kɔːr/ BrE AmE noun [countable usually singular, uncountable]
[ Word Family: noun : ↑ decor , ↑ decoration , ↑ decorator ; verb : ↑ decorate ; adverb : ↑ decoratively ; adjective : ↑ decorative ]
[ Date: 1800-1900 ; Language: French ; Origin: décorer 'to decorate' , from Latin decoratus ; ⇨ ↑ decorate ]
the way that the inside of a building is decorated:
The decor is a mix of antique and modern.