Nargileh and Water main

Nargileh noun - An oriental tobacco pipe with a long flexible tube connected to a container where the smoke is cooled by passing through water.

Water main and nargileh are semantically related in pipe through which water moves topic. In some cases you can use "Water main" instead a noun "Nargileh".

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

Nargileh and water main are semantically related in pipe through which water moves topic. You can use "Nargileh" instead a noun phrase "Water main".