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

Noun You'll get there quicker if you take the interstate.
Recent Examples on the Web: Adjective She was convicted of conspiracy to traffic in counterfeit goods, commit copyright infringement, and introduce misbranded food into interstate commerce., "Here’s a full list of the people who Trump pardoned or commuted the sentences of," 20 Jan. 2021 Smocks faces a charge of knowingly and willfully transmitting threats in interstate commerce. Dallas News, "These are the North Texans who have been arrested after storming the Capitol," 16 Jan. 2021 Meredith is facing federal charges of transmitting a threat in interstate commerce, possession of an unregistered firearm and unlawful possession of ammunition. Erin Donaghue, CBS News, ""A certain danger": Judge detains man accused of threatening Nancy Pelosi and D.C. mayor," 14 Jan. 2021 Louis Capriotti, 45, was arrested near his Chicago Heights home on Tuesday and charged with transmitting a threat in interstate commerce. Zachary Halaschak, Washington Examiner, "FBI arrests man it says threatened to kill Democrats at White House," 12 Jan. 2021 In this case, they are being charged with knowingly transporting, attempting to transport, receive and acquire wildlife, including turkey, deer or parts thereof, in interstate commerce, according to the Grand Jury indictment. Joe Genzel, Outdoor Life, "Every Hunter Should Know What the Lacey Act Is, How It Works, and Why It’s On the Books," 2 Dec. 2020 Federal law explicitly prohibits states from setting their own fuel economy standards, and the Constitution grants Congress the power to regulate interstate commerce. The Editorial Board, WSJ, "GM Drives in Political Reverse," 25 Nov. 2020 Ivan Harrison Hunter of Boerne, Texas was arrested in San Antonio, Texas, on Wednesday and faces a charge of interstate travel with the intention of participating in a riot, the Minnesota US Attorney’s office announced in a statement. Erin Corbett,, "Ivan Hunter Is The Boogaloo Boi Who Opened Fire On A Minneapolis Police Station," 26 Oct. 2020 Restrictions will be imposed across Sydney to arrest a growing coronavirus outbreak that’s disrupting interstate travel and scuppered the nation’s premier yacht race. Jason Gale,, "Sydney Covid Measures Widen Amid Northern Beaches Outbreak," 19 Dec. 2020 Recent Examples on the Web: Noun With the 1992 election of Clinton as president, Hope had a reason for people to pull off the interstate. Rex Nelson, Arkansas Online, "A place called Hope," 10 Jan. 2021 The interstate was closed for two hours for crash reconstruction/investigation. Post-tribune Staff,, "Trooper Struck on I-80/94 Christmas Morning," 25 Dec. 2020 The interstate was also closed in that area in both directions. Fox News, "Train carrying crude oil derails, burns north of Seattle," 23 Dec. 2020 The interstate was closed for hours as police investigated. al, "Alabama woman struck by vehicle, killed after Georgia crash," 16 Dec. 2020 Drivers can also use the Clay Wade Bailey Bridge (U.S. 25), and the Taylor Southgate Bridge (U.S. 27) to get to and from Downtown without using the interstate. Sarah Brookbank, The Enquirer, "Brent Spence Bridge closures: Here's how to cross the Ohio River in Greater Cincinnati," 12 Nov. 2020 Authorities said Poe was the driver and lone occupant of a Toyota 4Runner traveling south on the interstate when his vehicle left the roadway and struck a concrete barrier. Carol Robinson |, al, "Jasper man killed in crash on I-59/20 in Birmingham," 30 Dec. 2020 State transportation officials said the interstate would likely be down to one lane each way overnight and warned travelers about vehicles in the ditch. CBS News, "Tornadoes could hit some areas as massive winter storm moves east ahead of Christmas," 23 Dec. 2020 The storm is thought to have played a role in a crash that killed two people on an interstate in Pennsylvania that involved dozens of vehicles, state police said. NBC News, "Snow piling up as 'serious storm' takes aim at East Coast," 16 Dec. 2020

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.

See More

First Known Use of interstate


1844, in the meaning defined above


1968, in the meaning defined above

Keep scrolling for more

Learn More about interstate

Time Traveler for interstate

Time Traveler

The first known use of interstate was in 1844

See more words from the same year

Statistics for interstate

Last Updated

26 Jan 2021

Cite this Entry

“Interstate.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2021.

Keep scrolling for more

More Definitions for interstate


How to pronounce interstate (audio)

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.


How to pronounce interstate (audio)

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

More from Merriam-Webster on interstate

Thesaurus: All synonyms and antonyms for 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).


Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Anagram puzzles meet word search.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!