stepˈchild, stepˈ-daughter or stepˈ-son noun

A wife's or husband's but not one's own child, daughter or son

stepˈdame noun (archaic)

A stepmother

stepˈfather noun

A mother's husband not one's own father

stepˈmother noun

1. A father's wife not one's own mother
2. A bird that hatches another's eggs

stepˈmotherly adjective

stepˈ-parent noun

stepˈ-parenting noun