interstate highway

Definitions of interstate highway
1

n one of the system of highways linking major cities in the 48 contiguous states of the United States

Synonyms:
interstate
Type of:
highway, main road
a major road for any form of motor transport

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.