Twin, suite etc

1. ROOM
A room is any distinguishable space within a
structure. Usually, a room is separated from other
spaces or passageways by interior walls; moreover, it
is separated from outdoor areas by an exterior wall,
sometimes with a door. Historically the use of rooms
dates at least to early Minoan cultures about 2200
BC, where excavations
on Santorini, Greece at Akrotiri reveal clearly
defined rooms within certain structures