superhighway

noun

su·​per·​high·​way ˌsü-pər-ˈhī-ˌwā How to pronounce superhighway (audio)
ˈsü-pər-ˌhī-
1
: a multilane highway (such as an expressway or turnpike) designed for high-speed traffic
2

Examples of superhighway in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In the Plowshare film, a crude animation illustrates a zipper of nuclear blasts from the Atlantic to the Pacific, to excavate a sea-level channel up to two hundred feet wide and one thousand feet deep, an oceanic superhighway across Costa Rica or Nicaragua. Literary Hub, 11 June 2025 The superhighway would move large quantities of electricity from renewable energy sources, such as wind and solar in remote locations, to urban and industrial centers with high energy demand. Deborah Wince-Smith, Forbes.com, 14 May 2025 Third, build a national transmission superhighway and smart, self-healing electric grid. Deborah Wince-Smith, Forbes.com, 14 May 2025 Or rivers like the Skykomish that flow into the Puget Sound, which used to be salmon superhighways but are now closed to sportfishing some years due to abysmal returns. Dac Collins, Outdoor Life, 15 May 2025 See All Example Sentences for superhighway

Word History

First Known Use

1924, in the meaning defined at sense 1

Time Traveler
The first known use of superhighway was in 1924

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Cite this Entry

“Superhighway.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/superhighway. Accessed 3 Jul. 2025.

Kids Definition

superhighway

noun
su·​per·​high·​way ˌsü-pər-ˈhī-ˌwā How to pronounce superhighway (audio)
1
: a highway designed for high-speed traffic
2
Last Updated: - Updated example sentences
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