in·​ter·​state | \ ˌin-tər-ˈstāt How to pronounce interstate (audio) \

Definition of interstate

 (Entry 1 of 2)

: of, connecting, or existing between two or more states especially of the U.S. interstate commerce


in·​ter·​state | \ ˈin-tər-ˌstāt How to pronounce interstate (audio) \

Definition of interstate (Entry 2 of 2)

: any of a system of expressways connecting most major U.S. cities

called also interstate highway

Examples of interstate in a Sentence


You'll get there quicker if you take the interstate.

Recent Examples on the Web: Adjective

Union membership at trucking companies has fallen dramatically since interstate trucking was deregulated in 1980, and is now largely confined to the less-than-truckload, or LTL, sector. Jennifer Smith, WSJ, "Trucker YRC, Teamsters Tumble Toward Contract Deadline," 20 Mar. 2019 Complicating matters further, the conservative majority on the present Supreme Court has tended to take a narrow view of the interstate commerce clause and has been prone to limit its scope in terms of enabling federal regulations. John Timmer, Ars Technica, "Scientists, ethicists slam decisions behind gene-edited twins," 30 Nov. 2018 He's been charged with transmitting threats through interstate communications, a federal crime, according to jail records. Matthew Martinez, star-telegram, "He threatened to burn down a Texas TV station, called journalist 'dead man walking,' authorities say," 3 July 2018 So far there has been no formal discussion of legislation or interstate compacts that would allow bookmakers to pool money across state lines, but there are precedents for state lottery systems and for horse racing. Chris Kirkham, WSJ, "As Sports Betting Goes Legit, a Home Team’s Win Can Mean Bookmakers Lose," 7 June 2018 The commission argued that New Jersey cannot unilaterally decide to dissolve the agency because it was created through an interstate compact with New York. Patrick Mcgeehan, New York Times, "On the Waterfront, a Mob Watchdog Is Fighting to Survive," 17 Jan. 2018 Gilbert also faces charges of wire fraud, health care fraud, and interstate travel in aid of racketeering. Leada Gore,, "Bribery charges rock Alabama's political landscape: What we know today," 3 Apr. 2018 The Blazer will get up to interstate speed, sure, but there's a lag when the foot hits the gas. Andrew Moseman, Popular Mechanics, "2019 Chevy Blazer Test Drive: What Happened When GM Tried To Make the Crossover Cool," 4 Feb. 2019 Although gambling is largely regulated by the states, the longstanding view of the Justice Department has been that interstate gambling involving electronic transmissions is prohibited by a 1960s federal law called the Wire Act. Alexandra Berzon, WSJ, "Justice Department’s Reversal on Online Gambling Tracked Memo From Adelson Lobbyists," 18 Jan. 2019

Recent Examples on the Web: Noun

The victory might be especially salient in Warren County, Ohio, which is the same place where trans 17-year-old Leelah Alcorn took her own life in December 2014; a stretch of interstate was later dedicated to her. Lucy Diavolo, Teen Vogue, "A Trans Teen's Name Change Could Be Allowed After an Ohio Judge's Initial Ruling Was Overturned," 12 Mar. 2019 Privacy - Terms All lanes of the interstate were closed near University City Boulevard, but reopened shortly after 6 a.m., Observer news partner WBTV reported. Lavendrick Smith, charlotteobserver, "Minivan collides with dump truck in deadly crash on Charlotte interstate," 6 June 2018 Investigators think the woman and her son were killed somewhere else and dumped beside the interstate. Jeffrey Collins, The Seattle Times, "After 20 years police in 2 states link dead mother and son," 6 Feb. 2019 Traffic cameras show the smoldering remnants of an RV on the shoulder of the interstate. Michael Williams,, "RV fire closes 2 lanes on northbound I-95 in Volusia County," 13 July 2018 Police and emergency medical personnel were dispatched to the northbound lanes of the interstate at the Stuenkel Road exit in Will County, police said. Mike Nolan, Daily Southtown, "State police say body found in ditch along I-57," 2 July 2018 Corey Ross, 19, was driving northbound on the interstate at a high rate of speed, troopers said. Michael Williams,, "Man, 19, killed in Volusia motorcycle crash, troopers say," 10 July 2018 The crash had closed the frontage road, but I-10 remained open, although the Arizona Department of Transportation said backups were starting to occur on the interstate in the area. Arizona Republic, azcentral, "Train derails in Tucson near Interstate 10," 10 July 2018 Perrine said the victim suffered non-life threatening gunshot wound while traveling on the interstate and was driven to the hospital. Justin L. Mack, Indianapolis Star, "Person shot on I-65 near Lebanon," 5 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'interstate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of interstate


1844, in the meaning defined above


1968, in the meaning defined above

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Statistics for interstate

Last Updated

29 Mar 2019

Look-up Popularity

Time Traveler for interstate

The first known use of interstate was in 1844

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English Language Learners Definition of interstate

 (Entry 1 of 2)

: relating to or connecting different states : existing or occurring between states especially in the U.S.



English Language Learners Definition of interstate (Entry 2 of 2)

US : a major highway that connects two or more states : an interstate highway


in·​ter·​state | \ ˌin-tər-ˈstāt How to pronounce interstate (audio) \

Kids Definition of interstate

: existing or occurring between two or more states an interstate highway

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Rhyming Dictionary: Words that rhyme with interstate

Spanish Central: Translation of interstate

Nglish: Translation of interstate for Spanish Speakers

Comments on interstate

What made you want to look up interstate? Please tell us where you read or heard it (including the quote, if possible).


having no equal

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