interstate

Involving, existing between, or connecting two or more states.

One of a national system of expressways connecting major population centers in the United States.

Existing or taking place between different states, or persons in different states; especially, carried on between the States of the American Union, or by persons in one State with persons in another.

Pertaining to the mutual relations of States; existing between, or including, different States.

An interstate highway, part of the United States Interstate Highway system.

of, or relating to two or more states

crossing states (usually provincial state, but also e.g. multinational sense).

A freeway that is part of the Interstate Highway System

one of the system of highways linking major cities in the 48 contiguous states of the United States

involving and relating to the mutual relations of states especially of the United States