stepsister

US /ˈstepˌsɪs.tɚ/
UK /ˈstepˌsɪs.tɚ/
"stepsister" picture
1.

sorellastra

a daughter of one's step-parent by a previous marriage

:
My stepsister and I get along really well.
Io e la mia sorellastra andiamo molto d'accordo.
She introduced her stepsister to the family.
Ha presentato la sua sorellastra alla famiglia.