ma'am Syllabification: (ma'am)Pronunciation: /mam/Translate ma'am | into Italian Definition of ma'am noun a term of respectful or polite address used for a woman:excuse me, ma’am a term of address for a ranking female officer in the police or armed forces. British a term of address for female royalty. Origin: mid 17th century: contraction of madamma'am in other Oxford dictionaries Definition of ma'am in the British & World English dictionary