mains Meaning, Definition & Usage

  1. noun any very large body of (salt) water
    main; briny.
  2. noun a principal pipe in a system that distributes water or gas or electricity or that collects sewage
    main.

WordNet

Mains noun
Etymology
Scot. See Manse.
Definitions
  1. The farm attached to a mansion house. Scot.

Webster 1913