1. existing or occurring between two or more states

1. a major highway that connects different states

Examples

• Interstate commerce is regulated by federal law.
• The company has interstate operations in five different states.
• We took Interstate 95 to drive from New York to Florida.
• The interstate was crowded with holiday traffic.
• Interstate highways connect major cities across the country.
• The truck driver specializes in interstate deliveries.
• Construction on the interstate caused major delays.