interstate
adjectiveUK /ˌɪntəˈsteɪt/
US /ˌɪntərˈsteɪt/
A road that goes from one state to another state.
We drove on the interstate to visit our cousins in the next state.
OTHER MEANINGS
2. Happening or existing between different states.
The two states signed an interstate agreement about sharing water.
3. A highway that crosses state lines, especially in the United States.
The interstate was busy with trucks heading north.
4. Involving travel or trade from one state to another.
Interstate commerce is regulated by the federal government.