Roads and Throughway

Roads noun - A partly sheltered anchorage.

Throughway and roads are semantically related. in path upon which travel occurs topic. In some cases you can use "Throughway" instead a noun "Roads".

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

Roads and throughway are semantically related. Sometimes you can replace term "Roads" with "Throughway", this nouns are similar.