11.   The newly painted double doors stood open to the yard, where a timber-lorry was being unloaded.

12.   To the right, open double doors hinted at shadowy figures.

13.   ...a pair of double doors into the room from the new entrance hall.

14.   Go through those double doors and walk to the end of the hall.

15.   But now a new pattern emerged as the red and brown shapes blocked together to form overlapping triangles all pointing across the room at the double doors opposite.

16.   All three of us nodded in unison and we stood in line as he pushed open the double doors for us.

17.   A dim night-light cast her shadow against the closed double doors she knew opened on to his rooms.

18.   Rachel stepped out into the sunlight, clouds of white silk and taffeta rustling as she moved with her father to the double doors.

19.   Has it got double doors that shop?

20.   An Emory University neurologist, Dr. Philip Kennedy, wants to open those windows, build a double door and invite the world in.