expressway, superhighway, skyway
freeway
turnpike
Expressway, highway, freeway, interstate...
Yes, although a freeway can sometimes be faster than a highway.
To freeway to freeway to have to do what you do.
it was a traffic jam on the freeway
The noun freeway is not a proper noun. The noun freeway is a common noun, a general word for any freeway anywhere. A proper noun is the name of a specific person, place, or thing. Examples of proper nouns for the common noun freeway are the Gulf Freeway, Galveston, Texas or the Antelope Valley Freeway in California.
"Autobahn" is a German equivalent of "freeway."
"Autosnelweg" is a Dutch equivalent of "freeway."
"Autovía" is a Spanish equivalent of "freeway."
about the same speed as freeway traffic
you can park in a freeway if only there is a parking lot