A stepmother is a woman who enters one's family by marrying one's parent. Children from her spouse's previous unions are known as her step-children.

Who is called stepmother?

: the wife of one's parent when distinct from one's natural or legal mother.

What is the role of a stepmother?

The stepmother role should be based on what's comfortable for her, the children, and the family as a whole. Stepmothers will always share their husband with his children for the rest of their married life. A strong bond may exist between and husband and his children from a prior marriage.