13
sib(noun, sister, consanguinity, brother)
13
brother(noun, sister, consanguinity, brother)
12
sister(noun, sister, consanguinity, brother)
10
relation(noun, connection, link, association, stock)
9
relative(noun, connection, link, association, relation)
6
kin(noun, connection, link, association, relation)
6
family
4
kinsman(noun, relative, consanguinity)
2
next of kin(noun, expression, idiom, relation, kin)
2
kinfolk(noun, kin, sister, consanguinity, brother)
2
kith and kin(noun, expression, idiom, relation, family)
2
kinsperson(noun, connection, link, association, house)
2
people
2
relations
2
relatives
1
cognate
1
aunt
1
blood relative(expression, idiom)
1
blood relation(expression, idiom)
1
connection(noun, link, association, house, stock)
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APASmart Define. (2015). sibling thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sibling/thesaurus/synonyms
ChicagoSmart Define. 2015. "sibling thesaurus" https://smartdefine.org/sibling/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, sibling thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sibling/thesaurus/synonyms>.
MLASmart Define. "sibling thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/sibling/thesaurus/synonyms>