It was not quite a cave, but had only one open side to defend.

Thanks for the tip about open side down first - I've never done it that way.

Usually the open side faced the entrance of the room.

They had reached a large room with one open side.

He turned and gestured toward the open side of the room.

The opponent's open side is on the left as you view him.

However, the open side of the tower actually faces west.

The middle one of these was slightly higher than its companions and had open sides.

The open short side was at the far end of the parade ground nearest to the town.

The open side of his face looked like nothing less than a grinning corpse.