Cách sử dụng
The word 'stepsister' is used to describe a person who is the daughter of someone's step-parent (a spouse's parent). For example, if your mother gets married to a man who has a daughter from a previous marriage, that daughter would be your stepsister. It's important to use the word 'stepsister' when referring to this person, as opposed to just calling them your sister, because it distinguishes the relationship from a biological sister.