-1
near relative
-1
nearest and dearest
-1
next
-1
nexus(connection, association, relation)
-1
offshoot
-1
offspring
-1
parent
-1
partner(associate, spouse)
-1
race
-1
sisterly
-1
son(noun, offspring)
-1
spouse
-1
stock
-2
heir
-2
tie(connection, association, relation)
-2
tie-up(connection, link, relationship)
-2
tribe
-2
triplet
-2
yoke(connection, association, relation)
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APASmart Define. (2015). sibling thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/sibling/thesaurus/synonyms
ChicagoSmart Define. 2015. "sibling thesaurus" https://smartdefine.org/sibling/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, sibling thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sibling/thesaurus/synonyms>.
MLASmart Define. "sibling thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/sibling/thesaurus/synonyms>