The large pipes or cables that supply electricity, water, or gas to buildings, or the main power supply system in a home or building.
From Middle English 'main' meaning 'principal' or 'chief,' from Old French 'maine,' ultimately from Latin 'magnus' meaning 'great.' It evolved to refer to principal supply lines.
Most houses run on 240 volts from the mains, but countries like the UK use 230 volts while the US uses 120 volts—that's why you need adapters when traveling internationally!
Complete word intelligence in one call. Free tier — 50 lookups/day.