1. a major highway designed for high-speed traffic with limited access points
Usage: American English; also spelled ‘thruway’

Examples

• The New York State Thruway is one of the longest throughways in the country.
• Traffic was heavy on the throughway during rush hour.
• We took the throughway to avoid the slower local roads.
• The throughway connects several major cities across the state.
• Construction crews are widening the throughway to reduce congestion.
• Exit 15 provides access from the throughway to downtown.