Adjoining rooms are two rooms with a door between them. Ask for adjoining rooms, book adjoining rooms for the family.
The connecting door is the point, since rooms merely next door to each other are not adjoining rooms. Families ask for them and light sleepers avoid them.
1nounadjoining roomsTwo rooms with a door between them.
“They booked adjoining rooms so the children could be left to sleep.”
adjoining rooms is rooms.
Practised in Hotel & Staying Away