A person who shares a parent; one's brother or sister who one shares a parent with.
‘None of my siblings are married yet.’;
(comptheory) A node in a data structure that shares its parent with another node.
a brother or a sister.
of or pertaining to a sibling, n.; as, sibling rivalry: the common rivalry between siblings.
a person's brother or sister
A sibling is a gender neutral word for a relative that shares at least one parent with the subject. A male sibling is a brother and a female sibling is a sister.