water main

1. 1.

   main (a pipe or conduit) for conveying water

   Broadermain

   Part ofwater system

Questions about water main

What does water main mean?

water main means "main (a pipe or conduit) for conveying water".

Is water main a common word?

water main is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.