1.
guest room; hotel room
A room in a hotel, inn, or house designated for guests.
客室の鍵をもらった。
I received the room key.
このホテルには客室が三百室ある。
This hotel has 300 rooms.
旅館の客室から海が見えた。
I could see the ocean from the inn's guest room.
2.
passenger cabin; passenger compartment
The passenger area of an airplane, ship, or train, as distinct from the crew area.
客室は満席です。
The passenger cabin is full.
客室の窓から雲が見えた。
I could see clouds from the cabin window.
客室乗務員が飲み物を配っている。
The cabin crew is distributing drinks.
A versatile word used in both hospitality and transportation contexts.
SENSE 1 — HOTEL/INN:
- 客室数: number of rooms
- 客室係: room attendant
- 客室清掃: room cleaning
- 客室料金: room rate
SENSE 2 — AIRPLANE/SHIP:
- 客室乗務員: cabin crew, flight attendant
- 客室内: inside the cabin
SIMILAR WORDS:
- 部屋: room — general, everyday word
- 和室: Japanese-style room
- 洋室: Western-style room
- キャビン: cabin — loanword, used mainly for ships and planes
FORMATION:
客 (guest, passenger) + 室 (room).