plural of main

(chiefly Britain) The domestic electrical power supply. / The pipes of a centralized water supply that transport the water to individual buildings. / The main course of a meal.

Third-person singular simple present indicative form of main

(Scotland) The farm attached to a mansion house.

(Internet) E-mail that is wanted by the recipient and is not considered spam.

(retronym) Mail sent physically in the post, especially as compared to email.

The principal pipe, usually underground, for conveying water to residential and business properties.

(uncountable) Virginity. / (anatomy) The hymen.

(cricket) a maiden over in which a bowler gets a batsman out

(computer hardware) A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital.