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interstate

1 of 2

adjective

in·​ter·​state ˌin-tər-ˈstāt How to pronounce interstate (audio)
: of, connecting, or existing between two or more states especially of the U.S.
interstate commerce

interstate

2 of 2

noun

in·​ter·​state ˈin-tər-ˌstāt How to pronounce interstate (audio)
: any of a system of expressways connecting most major U.S. cities

called also interstate highway

Examples of interstate in a Sentence

Noun You'll get there quicker if you take the interstate.
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.
Adjective
Despite the more exotic destination, Chris Williams' trip to the space station took far less time than his family's sea voyage, and was shorter than some of the interstate road trips expected across the country today. Robert Z. Pearlman, Space.com, 27 Nov. 2025 Since the settlement forced the state to stop using the flawed voter data-sharing system, Kansas has opted not to join a more reliable interstate voter registration system. Kacen Bayless, Kansas City Star, 25 Nov. 2025
Noun
All southbound lanes of the interstate were closed as investigators worked to determine the cause of the crash and clear the scene. CBS News, 22 Nov. 2025 After developing his technique, the musician and his wife opened their first incarnation of Franklin in 2009 as a lone smoker near an Austin interstate. Jeremy Repanich, Robb Report, 19 Nov. 2025 See All Example Sentences for interstate

Word History

First Known Use

Adjective

1844, in the meaning defined above

Noun

1968, in the meaning defined above

Time Traveler
The first known use of interstate was in 1844

Browse Nearby Words

Cite this Entry

“Interstate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstate. Accessed 29 Nov. 2025.

Kids Definition

interstate

1 of 2 adjective
in·​ter·​state ˌint-ər-ˈstāt How to pronounce interstate (audio)
: of, connecting, or existing between states especially of the U.S.
interstate highways

interstate

2 of 2 noun
in·​ter·​state ˈint-ər-ˌstāt How to pronounce interstate (audio)
: an interstate highway

More from Merriam-Webster on interstate

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