antechamber; next room
Refers to a room adjacent to the main room, often used as a waiting room or antechamber in traditional Japanese architecture.
客は次の間で待たされた。
The guest was made to wait in the antechamber.
次
I can hear voices from the next room.
Standard kanji spelling.
Compound of 次 (next) + の (possessive particle) + 間 (room).