MAM is a noun that means mum, the informal word for mother in British English. Learn how to use it in sentences, see examples, and compare it with other words for mum. “Mam” is a more casual and colloquial way of addressing a woman, particularly in informal settings or regional dialects. It is important to note that “mam” should only be used when referring to one’s own mother , while “ma’am” is used to address any woman in a respectful manner. The meaning of MAM is mom.Noun (1) of baby-talk origin Noun (2) Spanish mame, of American Indian origin Learn how to use " mam ", "ma'am", and "madam" correctly in different contexts and regions. Find out the meanings, origins, and examples of these terms and their variations.