| edge(noun, border, borderline, frontier) |
| line of demarcation(noun, expression, idiom, border, borderline) |
| verge(noun, border, borderline, frontier) |
| abuttals(border, borderline, frontier) |
| ambit(noun, border, borderline, frontier) |
| barrier(noun, border, borderline, frontier) |
| beginning(noun, border, borderline, frontier) |
| borderland(noun, border, borderline, frontier) |
| borderline(noun, border, frontier) |
| boundary(border, borderline, frontier) |
| bounds(noun, border, borderline, frontier) |
| brink(noun, border, borderline, frontier) |
| circumference(noun, border, borderline, frontier) |
| circumscription(noun, border, borderline, frontier) |
| compass(noun, border, borderline, frontier) |
| confines(noun, border, borderline, frontier) |
| end(noun, border, borderline, frontier) |
| environs(noun, border, borderline, frontier) |
| extent(noun, border, borderline, frontier) |
| extremity(noun, border, borderline, frontier) |