He opened a door marked private, went through and closed it behind him.
Beyond that the stairs went up again, and at the top was the private door leading through into the apartments.
By taking a very great liberty with your private door.
He came through one of the private doors behind the Lords' table.
I hurried back to my office and went in through the private door down the hall.
You have come to my private door without leave.
He entered the hospital by his private door on the avenue.
After a moment's hesitation, the young man pounded on the private door.
The private door was locked, with no key to be seen.
He passed a woman and two men on the way to his private door.