1
cognate(noun, connection, relation, kin, relative)
1
country cousin
1
family(noun, kinship)
1
father-in-law(noun, connection, relation, kin, relative)
1
fatherhood(noun, kinship)
1
flesh(noun, kinship)
1
folk
1
folks
1
foster brother
1
frater
1
fraternity(noun, kinship)
1
grade
1
granddaughter
1
grandnephew
1
grandparents(noun, connection, relation, kin, relative)
1
granduncle
1
great-aunt
1
great-grandparents(noun, connection, relation, kin, relative)
1
great-uncle
1
half brother
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APASmart Define. (2015). niece thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/niece/thesaurus/synonyms
ChicagoSmart Define. 2015. "niece thesaurus" https://smartdefine.org/niece/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, niece thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/niece/thesaurus/synonyms>.
MLASmart Define. "niece thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/niece/thesaurus/synonyms>