Synonyms of 'border on something'
▷ See border
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When land or a building abuts something or abuts on something, it is next to it.
He lived in a house abutting our hotel.
If one room, place, or object adjoins another, they are next to each other.
Fields adjoined the garden and there were no neighbours.
Thesaurus for border on something from the Collins English Thesaurus