The English language is rich in ways to define a motorway, but what about square; can you help me find other definitions of it, or square-like spaces?
The USPS maintains a list of street suffixes and their abbreviations.
Click on street suffix tab. I tried to link directly but it drops you at the state abbreviations first.
The shape of the referenced item is not listed. That is left to you and urban planners everywhere to decide. What shape is a BLUFF?