border
bor-der
verb
To form a boundary to something, or to be situated next to it.
"France borders Belgium to the north."
noun
A line or boundary separating two countries, regions, or areas.
"They crossed the border into Scotland."
Thesaurus
Synonyms: ring, environ, surround, skirt, adjoin, abut, butt, march, edge, butt on, butt against, margin