Graving dock and Roads

Graving dock noun - A large dock from which water can be pumped out; used for building ships or for repairing a ship below its waterline.

Roads and graving dock are semantically related. In some cases you can use "Roads" instead a noun phrase "Graving dock".

Roads noun - A partly sheltered anchorage.

Graving dock and roads are semantically related. You can use "Graving dock" instead a noun "Roads".