Autobahn and National road

Autobahn noun - An expressway in a German-speaking country.

National road and autobahn are semantically related in highway topic. In some cases you can use "National road" instead a noun "Autobahn", when it comes to topics like motorway, freeway.

Autobahn and national road are semantically related in highway topic. You can use "Autobahn" instead a noun phrase "National road", if it concerns topics such as motorway, freeway.