部屋|へやheya[2]odaka (tail-high)

1. nounroom; chamber
   マユコは部屋へやに入はいった。↗

   Mayuko entered the room.
2. nounapartment; flat; pad
   私の部屋へやは４階かいにあります。↗

   My apartment is on the fourth floor.
3. noun, sumostable

• Synonym室しつWrittenMostly a suffix or part of facility names like 「会議室」「研究室」; standing alone it is written/formal prose. For a room in your home, say 「部屋」.
• SynonymルームNeutralA loanword used mostly in compounds like 「ルームサービス」「ワンルーム」; it rarely stands alone.
• Relatedお部屋おへやNeutralA politer, softened form of 「部屋」, used with guests, in the service industry, or in a gentle tone.

For everyday rooms, use 「部屋」. For rooms in facilities or with a set function, use 「〜室」 as in 「会議室」. 「ルーム」 appears mainly in compounds; 「お部屋」 is a polite variant for guests or service settings.

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

1. 建物たてものの中なかを、用途ようとに応おうじて壁かべなどで仕切しきったもの。
2. 旅館りょかんやアパートなどで、宿泊しゅくはくや居住きょじゅうのための一いち区画くかく。語義ごぎ1.の「部屋へや」を複数ふくすう含ふくむことがある。
3. 相撲部屋すもうべや。