Brit. <英>
often as modifier
- used to refer to an arrangement whereby people or things make use of the same accommodation or facilities at different times, according to a strict arrangement（根据严格安排）轮流使用（住所或设备）。
词源
the title of a play (1847) by J. M. Morton， in which two characters， John Box and James Cox, unknowingly become tenants of the same room.