interprovincial
/ˌɪntərprəˈvɪnʃəl/
adjective
- Relating to or occurring between two or more provinces (regions within a country).
- Interprovincial trade agreements help boost the economy across the country.
- They moved interprovincially when her father got a new job in a neighboring province.
- The interprovincial highway connects the capitals of three provinces.