"Boreder" might be considered "legal" according to some guidelines, but is to be avoided because of the likely confusion with "border".
There is a hot "debate" on Twitter regarding whether the detention centers used by the US border patrol to detain/hold immigrants can be called "concentration camps" or not.
1 It depends on the morphology and the boundaries of the country. Coastal road/highway is an example of a road running along the border of a country partly surrounded by the sea. A more generic expression is border road!
The 'Home Counties' is the collective name given to the six counties which border London, but I am always at a loss as to whether to apply capitals.I think I will compose a question on this.
Generically, it could be called a frame, but a border around the sign could also be called a frame, so I don't think that's a good answer or what you're looking for.
On the other hand, a state border is a defined, measurable boundary, or perimeter. The conceptual "periphery" of a city center may lie within or outside of the city's state border, or perimeter. The NY Metro area, for example, includes peripheral suburbs in NJ and CT.
Yahoo: Border Patrol must not profile people. Federal judge’s ruling is correct | Opinion
Add Yahoo as a preferred source to see more of our stories on Google. Department of Homeland Security Secretary Kristi Noem meets with Customs and Border Protection agents at the border with Mexico.
Border Patrol must not profile people. Federal judge’s ruling is correct | Opinion
Los Angeles Times: ACLU argues Border Patrol broke court order with high-profile Sacramento raid