Meaning & use
interstate
Existing, occurring, or carried on between two or more states.
See it in a sentence
Interstate commerce is regulated by federal law rather than by individual states.
We took the interstate highway to cross three states in a single day.
A note on using this word
In American English, "the interstate" is also used as a noun for a numbered highway in the U.S. Interstate Highway System.
Words with a similar meaning
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Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
Another way to use it
2. noun
A highway that is part of the U.S. Interstate Highway System, connecting multiple states.
We merged onto the interstate and drove north for nearly six hours.
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