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English definition of “ma'am”

ma'am

noun [as form of address] uk   /mɑːm/ us  
B1 a polite way of talking to a woman: How can I help you, ma'am?Friendly and unfriendly terms of address in Britain, used to address the Queen, or a woman of high rank in particular organizations, such as the army or the policeRoyalty, aristocracy and titles in the past, used when talking to a woman of higher social classFriendly and unfriendly terms of address
(Definition of ma'am from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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