Definition from Wiktionary, the free dictionary
interstate (not comparable)
- (chiefly US and Australia) of, or relating to two or more states
- (chiefly US and Australia) crossing states (usually provincial state, but also e.g. multinational sense).
- The truck driver drove interstate to unload.
of, or relating to two or more states
interstate (plural interstates)
- second-person plural present active imperative of interstō