stepsister

noun

A girl or woman who is the child of one's stepparent from an earlier relationship.

Example sentences

“My stepsister is coming to stay with us over the holidays.”
“She and her stepsister became close friends after sharing a room.”

Distinct from a half-sister, who shares one biological parent with you. Cinderella's stepsisters are the most famous examples.

Related words

stepchildA child that one's husband or wife had with a previous partner.stepbrotherA boy or man who is the child of one's stepparent from an earlier relationship.godchildA child for whom a godparent takes responsibility at their baptism.stepdaughterA daughter that one's husband or wife had with a previous partner.godsonA boy for whom a godparent takes responsibility at his baptism.stepsonA son that one's husband or wife had with a previous partner.