noun, noun which may take the genitive case particle 'no'
indoor; inside the room
Refers to the interior of a room or building; commonly used as a noun or with の to modify another noun.
Please take off your hat indoors.
The indoor temperature is set to 25 degrees.
On rainy days, I often spend time indoors.
Even in winter, the room is warm inside.
Every morning, I clean the room.
room light; interior light
indoor dog; house dog