In the UK, the term “mum” (also spelled “mom” in some regions) typically refers to a female parent or guardian who is responsible for the upbringing of a child. It is a term of endearment and affection that is often used by children and adults alike when referring to their mother or a maternal figure in their life. In addition to biological mothers, the term may also be used to refer to adoptive mothers, stepmothers, or other maternal figures who play a significant role in a child’s life.