1. the main supply of electricity, gas, or water to a building
Usage: British
2. the main courses of a meal
Usage: plural of main

Examples

• The house was connected to the mains last week.
• We lost power when the mains were damaged in the storm.
• The restaurant offers three different mains tonight.
• All the mains come with a choice of vegetables.
• The mains electricity supply was restored after the outage.
• She ordered one of the vegetarian mains from the menu.