2
consanguinity(noun, relative, kinship, sib)
2
family member
2
first cousin(expression, idiom, consanguinity)
2
kinswoman(noun, connection, relative, father, mother)
2
maternal uncle(expression, idiom)
2
second cousin(expression, idiom, consanguinity)
2
sib(noun, connection, relation, kin, relative)
2
sibling
2
stepbrother(noun, connection, relation, kin, relative)
2
stepsister(noun, connection, relation, kin, relative)
2
uncles
1
agnate(noun, connection, relation, kin, relative)
1
ancestor(noun, kinship)
1
avuncular
1
blood brother
1
brethren
1
brother-in-law(noun, connection, relation, kin, relative)
1
brotherhood(noun, kinship)
1
bub
1
bubba
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APASmart Define. (2015). uncle thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/uncle/thesaurus/synonyms
ChicagoSmart Define. 2015. "uncle thesaurus" https://smartdefine.org/uncle/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, uncle thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/uncle/thesaurus/synonyms>.
MLASmart Define. "uncle thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/uncle/thesaurus/synonyms>