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Adjective: interstate  ,in-tu(r)'steyt
  1. Involving and relating to the mutual relations of states especially of the United States
    "Interstate Highway Commission"; "interstate highways"; "Interstate Commerce Commission"; "interstate commerce"
Noun: interstate  ,in-tu(r)'steyt
  1. One of the system of highways linking major cities in the 48 contiguous states of the United States
    - interstate highway

Derived forms: interstates

Type of: highway, main road

Antonym: intrastate

Encyclopedia: Interstate