Water main and Water pipeline

Water main noun - Main (a pipe or conduit) for conveying water.

Water pipeline and water main are semantically related in waterway topic. In some cases you can use "Water pipeline" instead a noun phrase "Water main", when it comes to topics like conduit, water pipe, waterline, water line.

Water main and water pipeline are semantically related in waterway topic. You can use "Water main" instead a noun "Water pipeline", if it concerns topics such as conduit, water pipe, waterline, water line.