border
n. countable B1 Intermediate Oxford US //ˈbɔɹdɝ// UK //bˈɔːdɐ// bor·der
n. the line that separates two countries or areas. It can also mean the decorative edge around a picture, a page, or a computer screen.
n. the dividing line between two political or geographic entities; also, a decorative or functional margin around an object or digital element.
The border between the two countries is closed.
You can change the thickness and color of the border around your text box in the settings menu.
While the physical border remains heavily guarded, the cultural exchange between the neighboring regions continues to flourish through shared language and traditions.
Usage
Often used with the preposition 'between' for geographic contexts or 'around' for design and computing contexts.