A nightclub (often shortened to club) is an entertainment venue which does its primary business after dark. In most other languages, nightclubs are referred to as "discos" or "discothèques" (French: discothèque; German: Disko or Diskothek; Spanish: Discoteca). In Japanese ディスコ, disuko refers to an older, smaller, less fashionable venue; while クラブ, kurabu refers to a more recent, larger, more popular venue. The term night is often used to refer to an event hosted within a nightclub, such as "retro music night." A dance area too small to be considered a night club, but which has a bar, music and lighting effects, is occasionally referred to as a disco bar.