Maestronoun
A master in some art, especially a composer or conductor.
Maestronoun
(slang) A gang elder in prison.
Maestronoun
A master in any art, especially in music; a composer or orchestra conductor.
Maestronoun
an artist of consummate skill;
Maestro
Maestro (; from the Italian maestro [maˈestro; maˈɛstro], meaning or ) is an honorific title of respect (plural: maestri, feminine: maestra). The term is most commonly used in the context of Western classical music and opera, in line with the ubiquitous use of Italian musical terms.
Mastercard
Mastercard Inc. (stylized as MasterCard from 1979 to 2016 and mastercard since 2016) is an American multinational financial services corporation headquartered in the Mastercard International Global Headquarters in Purchase, New York.