MAGNA Meaning of MAGNA in English Magna, magna BrE AmE ˈmæɡ nə▶ ˌ Magna ˈ Carta, ˌ Magna ˈ Charta ˈkɑːt ə AmE \ -ˈkɑːrt̬ ə BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012