1. Public electricity, gas or water supply to a house or building
   "Working on the mains water supply"; "turn on the mains"

1. A principal pipe in a system that distributes water, gas, electricity or that collects sewage
   "Workers repaired a break in the water main"
    
2. The lowermost sail on the mainmast
   "They unfurled the main to catch the wind";
   - mainsail
    
3. Any very large body of (salt) water
   "Sailors who spend months on the main";
   - briny [Brit]

Sounds like: main, mane, Maains, m

Type of: body of water, canvas, pipage, pipe, piping, sail, sheet, water

Part of: base, hydrosphere, infrastructure

Encyclopedia: Mains, electric power