English · Family & People
stepsibling
/ˈstɛpsɪblɪŋ/
[/ˈstɛpsɪblɪŋ/]
step-parent's child
Advancednoun
Definition
The child of one's stepparent who is not a blood relative.
Example
I gained two stepsiblings when my mother remarried last year.
I gained two stepsiblings when my mother remarried last year.
Etymology
From "step," indicating a relation by remarriage, plus "sibling."
How & Where It’s Used
Refers to a stepparent's children; "stepbrother" and "stepsister" are specific forms.