How to say "chamber" in Japanese

• 部屋へやJLPT N5approx.Common
  nounCovers the everyday sense of 'chamber' as a room in a house or other building. This is the general word for a room, so it is what you want unless the context is political.
  マユコは部屋へやに入はいった。↗

  Mayuko entered the room.
• 議院ぎいんCommon
  nounCovers 'chamber' in the political sense, meaning a house of a parliament or similar assembly, as in a two-chamber legislature. It is not used for rooms in general.

Use 部屋 for an ordinary room or chamber in a building; use 議院 only for a legislative chamber, that is, a house of a parliament.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 部屋へやroom
• 房ぼうchamber
• チャンバーchamber (in equipment, e.g. expansion chamber, combustion chamber, etc.)
• 薬室やくしつchamber (of a gun)
• 輪胴りんどうchamber (of a revolver)
• 房室ぼうしつroom
• 議院ぎいんhouse (of parliament, etc.)