The door often but not always contains a transparent window.

They keep opening doors and none of them contain an exit.

Most secret doors contain the currency of the level, which changes frequently.

The driver's door contained four buttons in addition to the remaining individual windows.

Each door contained a circle of five single-access hand modems.

The main doors are of wood and contain metal studs with different designs.

The door still contains the original metal studs, which were a sign of wealth in the 18th century.

I should add that the door also contains a receiver.

The door contained the usual peep-hole, though its cover was seldom raised.

A broad buttress on the south side of the church contains a priest's door.