stepsister
[
step
-sis-ter]
/ˈstɛpˌsɪs tər/
noun
1.
one's stepfather's or stepmother's daughter by a previous marriage.
Origin
1400-50;
late Middle English;
see
step-
,
sister
Examples from the web for
stepsister
Until recently, natural gas was the forgotten
stepsister
of fuels.
She was predeceased by her three siblings and a
stepsister
.
British Dictionary definitions for
stepsister
stepsister
/
ˈstɛpˌsɪstə
/
noun
1.
a daughter of one's stepmother or stepfather by a union with someone other than one's father or mother respectively