Word of the Day -- Sally Port

The primary modern meaning for sally port is a secure, controlled entryway, as of a fortification or a prison. The entrance is usually protected by some means, such as with a fixed wall blocking the door which must be circumvented before entering, but which prevents direct enemy fire from a distance. It may include the use of two doors such as with an airlock. In former times, from around 1600 to 1900, a "sally port" was a sort of dock where boats would pick up a ship's crew and ferry them to the vessel anchored offshore, or vice versa. The term is occasionally still used today, especially in coastal Great Britain. However, there are not many old sally ports left.   This one is in Edinburgh.