Synonyms of 'border on something'
▷ See border
2 adjoinDictionary, join, touchBoth republics border on the Black Sea.
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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 something approaches a particular level or state, it almost reaches that level or state.
They race at speeds approaching 200mph.
Thesaurus for border on something from the Collins English Thesaurus