A double room has one large bed for two people. Book a double room, a double room at the back.
It is not the same as a twin, which has two separate beds for the same two people. A double room booked for one person is often the cheapest way to get a decent room.
1noundouble roomA room with one large bed for two people.
“They were given a double room overlooking the car park.”
double room is a room.
Practised in Hotel & Staying Away