Cairo, Egypt, in its history[?] has had a significant number of fortified gates protecting both inner and outer city. Apart from the purpose of defense they were also used for differentiation of the varied social and economic classes. Often the gates were heavily decorated as artistic pieces.
... several shades of meaning. At its simplest, it refers to an adherent of a monarch or royal family.
Of the more specific uses of the term, the most common include:
1. ...