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Definition 2025
superhighway
superhighway
English
![](https://definify.com/images_main/US_131,_M-6,_68th_St_interchange.jpg)
US 131, a superhighway in Wyoming, Michigan.
Noun
superhighway (plural superhighways)
- (US) An expressway, especially one designed for high speeds.
Quotations
- For usage examples of this term, see Citations:superhighway.