(へや)

へや
noun
room
1. room
An enclosed space within a building, separated by walls and a door.
My room is on the second floor.
Please clean the room.
I reserved a hotel room.
This room is bright and spacious.
Please knock before entering the room.

部屋(へや) is the general word for any room in a building.

COMMON EXPRESSIONS:

ROOM TYPES:

COUNTER:
Rooms are counted with 部屋(へや): 1部屋(へや), 2部屋(へや). For apartments: 2LDK, 3LDK, etc.