sibling
noun(sib-ling)
sib; also : one of two or more individuals having one common parent
sibling
noun(sib-ling)
one of two or more things related by a common tie or characteristic
sibling
noun(sib-ling)
one of two or more species that are nearly indistinguishable morphologically
sibling
noun(sib-ling)
competition between brothers and sisters