main2Translate main | into French | into German | into Italian Spanish translation of mainn 1 c (pipe) cañería (f) or tubería (f) principal; (cable) cable (m) principal 2 (supply) the main o (BrE) the mains = la red de suministro to turn the water/gas off at the main o (BrE) the mains = cerrar la llave (principal) del agua/del gasmain in other Oxford dictionaries Definition of main in the British & World English dictionary Definition of main in the US English dictionary