Ngate-- The north gate of keystone (that's the room called "north entrance
to
"Keystone") is a common meeting place and is generally referred to as 
"ngate".  Often, people will refer to the gates of other cities - "ngate
igneous" is the northern gate of Igneous on Crypt and "egate sauronan" is
the 
eastern gate of Sauronan on Wysoom.