Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “the mains”

the mains

noun [group]
 
/meɪnz/ UK
PIPES the system of pipes or wires that carries gas, water, or electricity to a building: The house isn't connected to the mains yet.Plumbing and pipes and sewage
ELECTRICITY the place inside a building where you can connect a machine to a supply of electricity: Is the cooker turned off at the mains?Electrical components and circuitry
(Definition of the mains from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Translations of “the mains”

Word of the Day

improvisation

a performance that an actor, musician, etc. has not practised or planned

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More