Meaning of the word mains in English

What does mains mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

mains

US /meɪnz/
UK /meɪnz/

Plural Noun

the principal supply of electricity, water, or gas to a building or area

Example:
The house is connected to the electricity mains.
Always unplug the appliance from the mains before cleaning.