interstate

1 of 2

adjective

in·​ter·​state ˌin-tər-ˈstāt 

: 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 

: 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

Jeffrey Peterson was found guilty on 10 counts of threatening to murder the officials and 10 counts of interstate transmission of threats to injure. — Wcco Staff, CBS News, 16 Oct. 2026

By the time the coffee shop building was going up at the end of the route in 1959, Fresco said, interstate freeways were already beginning to usurp Route 66’s role and the Santa Monica route of Interstate 10 had been plotted. — Los Angeles Times, 13 Oct. 2026

Noun

Police later found Tanaka along the interstate after his vehicle became disabled after the collision. — Brittany Miller, FOXNews.com, 7 Oct. 2026

From the interstate to the eastern suburbs, Citrus Heights’ city council hopefuls are focused on Sunrise Mall. — Sacbee.com, 6 Oct. 2026

Word History

First Known Use

Adjective

1844, in the meaning defined above

Noun

1968, in the meaning defined above

Rhymes for interstate

• abdicate
• abrogate
• acetate
• activate
• actuate
• aggravate
• agitate
• alginate
• alienate
• allocate
• amputate
• angulate

Kids 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