English Reference

Word

interstate

Phoneticsin·ter·state

US/ˌɪntɝˈsteɪt/

UK/ˌɪntəstˈeɪt/

Definitions

01a major highway

B1

n. a large, fast highway that connects different states.

n. a high-speed, multi-lane divided highway that forms part of the national Interstate Highway System in the United States.

“We took the interstate for three hours to get to the city.”

“Traffic on the interstate slowed to a crawl after a heavy snowstorm blocked three lanes near the state border.”

American English

Usage

Often used with the definite article 'the' or followed by a number, such as 'Interstate 95'.

Teaching tip

In the US, 'interstate' is the standard term for these roads, whereas 'motorway' is used in the UK.

Antonyms

backroadlocal road

02between states

B2 · Law

adj. involving or connecting two or more states within a country.

adj. relating to, connecting, or existing between two or more states, particularly in a federal union.

“The company handles interstate trade between New York and New Jersey.”

“The Supreme Court often hears cases regarding interstate commerce when state laws conflict with federal regulations.”

American English · Academic

Usage

Usually placed before the noun it modifies.

Teaching tip

Contrast this with 'intrastate', which refers to things happening within a single state.

Synonyms

inter-statenational

Antonyms

intrastatelocal

03moving to another state

B2

adv. to or in another state.

adv. to or in another state within the same country; used to describe travel or relocation.

“My sister is moving interstate to start a new job in Brisbane.”

“Many families chose to relocate interstate during the pandemic in search of more affordable housing and a better lifestyle.”

American English · Dialect

Usage

Commonly follows verbs of motion like 'move', 'travel', or 'go'.

Teaching tip

This adverbial use is particularly common in Australian English when discussing domestic travel.

Synonyms

out-of-state

Etymology

From inter- + state, originally as an adjective only; the noun is by (ellipsis) from interstate highway. The noun also serves adjectivally as a (noun adjunct) in such collocations as interstate construction and interstate rest stops.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry

Level
B1 · Intermediate
Frequency
Frequent
Updated

Scan code

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English Reference