ルームruumu

1. nounroom

• Synonym室しつWrittenMostly a suffix, as in 「会議室」; standing alone it sounds like written prose. 「ルーム」 is mainly for compounds and carries a Western feel.
• Synonym部屋へやNeutralThe everyday word for a room, with no Western flavor, as in 「自分の部屋」. 「ルーム」 is mostly confined to compounds.
• Relatedお部屋おへやFormalA polite way to say room, adding respect or a softer tone; common in hospitality and service settings. 「ルーム」 has no such coloring.

Use 「部屋」 for an ordinary room in daily speech; 「ルーム」 fits Western-style rooms and compounds like 「ルームサービス」; 「室」 works as a suffix, and 「お部屋」 is the polite choice for guests.

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

1. 部屋へや、室むろ、洋室ようしつ。