superhighway

noun

su·​per·​high·​way ˌsü-pər-ˈhī-ˌwā How to pronounce superhighway (audio)
ˈsü-pər-ˌhī-
Synonyms of superhighwaynext
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
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Our strategic position between the Great Lakes and the Mississippi watershed set our course as a commerce superhighway, with the Chicago Portage connecting two vast trading routes between the Atlantic and the Gulf. Alaina Harkness, Chicago Tribune, 3 May 2026 Mycorrhizal fungi direct traffic through nutrient superhighways and restructure the soil to support life across entire ecosystems. Quanta Magazine, 6 Apr. 2026 In many ways, the Internet is the greatest disseminator of misinformation ever invented, crossed with a superhighway of shopping. Owen Gleiberman, Variety, 26 Mar. 2026 First is an eight-lane superhighway, designed exclusively for massive traffic. Judy Stecker, STAT, 27 Feb. 2026 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 7 May. 2026.

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
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