noun
- plural of superhighway; major high-speed roads designed for fast, long-distance travel with multiple lanes and limited access points
Examples
- The superhighways connect major cities across the country.
- Traffic moves quickly on superhighways during off-peak hours.
- Construction crews are widening several superhighways to reduce congestion.
- Superhighways have transformed how Americans travel long distances.
- The interstate system includes thousands of miles of superhighways.
- Emergency vehicles use superhighways to reach accidents quickly.