2
kinsman(noun, connection, relative, father, mother)
2
kinswoman(noun, connection, relative, father, mother)
2
sib(noun, connection, relation, kin, relative)
2
stepbrother(noun, connection, relation, kin, relative)
2
stepsister(noun, connection, relation, kin, relative)
1
first cousin(expression, idiom, consanguinity)
1
ancestor(noun, kinship)
1
blood(noun, kinship)
1
agnate(noun, connection, relation, kin, relative)
1
auntie
1
blood brother
1
brethren
1
brother-in-law(noun, connection, relation, kin, relative)
1
brotherhood(noun, kinship)
1
bub
1
bubba
1
bud
1
buddy
1
clan(noun, kinship)
1
clansperson(noun, connection, relation, kin, relative)
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APASmart Define. (2015). niece thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/niece/thesaurus/synonyms
ChicagoSmart Define. 2015. "niece thesaurus" https://smartdefine.org/niece/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, niece thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/niece/thesaurus/synonyms>.
MLASmart Define. "niece thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/niece/thesaurus/synonyms>