Doorwall was once used in many parts of the United States for “sliding glass door,” although the term now seems to have settled largely in parts of Michigan. In the American Southwest, these doors are sometimes called arcadia doors. This is part of...
Amber from Berlin, New Hampshire, works in a prison, and wants to know why those ominous double sets of prison doors are called by the feminine-sounding name sallyport. Going back to the 1600s, a sallyport was a fortified entrance to a military...
