main

main1 [ meın ] adjective only before noun ***

most important, largest, or most frequently used:

The main entrance to the building is on George Street.

We eat our main meal of the day in the evening.

the main New York to Chicago flight route

The main focus of her speech was on the new sales strategy.

a. the main thing SPOKEN used for saying what is most important:

We're here now that's the main thing.

The main thing is that you're not injured.

main

main 2 [ meın ] noun count

1. ) a large pipe or wire used for carrying water, gas, or electricity:

a water/gas main

2. ) the mains plural BRITISH the public supply of water, electricity, or gas

a ) the point where the supply of gas, electricity, or water enters a building or room:

Turn the water off at the mains before you repair the faucet.

in the main

mostly:

The response, in the main, has been pretty positive.