Throughway and Way

Throughway noun - A broad highway designed for high-speed traffic.

Way and throughway are semantically related. in road topic. In some cases you can use "Way" instead a noun "Throughway", when it comes to topics like path upon which travel occurs.

Way noun - A passage cleared for public vehicular travel.

Throughway and way are semantically related. Sometimes you can use "Throughway" instead a noun "Way".