in·ter·state
ˌin-tər-ˈstāt 
: of, connecting, or existing between two or more states especially of the U.S.
interstate commerce
in·ter·state
ˈin-tər-ˌstāt
: 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
Joe Walsh, CBS News, 17 Mar. 2026
Specifically, the city is exploring a diverging diamond interchange as the solution — a type of interchange that briefly shifts traffic to the opposite side of the road in order to allow vehicles to turn left onto interstate ramps without crossing oncoming traffic.
—Taylor O'Connor, Kansas City Star, 16 Mar. 2026
Wcco Staff, CBS News, 17 Mar. 2026
The Missouri road conditions map showed that many of the interstates were clear; however, there were stretches where the highways were partly covered or mostly clear.
—Kansas City Star, 16 Mar. 2026
See All Example Sentences for interstate
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Adjective
Cole was charged late last year with interstate transportation of explosives and malicious attempt to use explosives, after federal authorities were unable to identify a suspect in the case for almost five years.
—Joe Walsh, CBS News, 17 Mar. 2026
Specifically, the city is exploring a diverging diamond interchange as the solution — a type of interchange that briefly shifts traffic to the opposite side of the road in order to allow vehicles to turn left onto interstate ramps without crossing oncoming traffic.
—Taylor O'Connor, Kansas City Star, 16 Mar. 2026
Noun
The state patrol says the eastbound side of the interstate is closed at 34th Avenue South and Highway 5.
—Wcco Staff, CBS News, 17 Mar. 2026
The Missouri road conditions map showed that many of the interstates were clear; however, there were stretches where the highways were partly covered or mostly clear.
—Kansas City Star, 16 Mar. 2026
See All Example Sentences for interstate
Cite this Entry
“Interstate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstate. Accessed 20 Mar. 2026.
Copy CitationKids Definition
interstate
1 of 2 adjective
in·ter·state
ˌint-ər-ˈstāt
: of, connecting, or existing between states especially of the U.S.
interstate highways
interstate
2 of 2 noun
in·ter·state
ˈint-ər-ˌstāt
: an interstate highway
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