stepsibling
[ step-sib-ling ]
/ ˈstɛpˌsɪb lɪŋ /
noun
a stepbrother or stepsister.
Words nearby stepsibling
stepper,
steppes,
stepping stone,
stepping-off place,
steppingstone,
stepsibling,
stepsister,
stepson,
stepstool,
steptoe,
stepwise