Definition of uncle :
1. A pawnbroker.
2. An eldery man; - used chiefly as a kindly or familiar appellation, esp. ( Southern U. S.) for a worthy old negro; as, Remus.
3. The brother of one's father or mother; also applied to an aunt's husband; - the correlative of aunt in sex, and of nephew and niece in relationship.
kinship (part of speech: noun)
father, mother, kin, ancestor, cousin, kinship, brotherhood, fraternity, family, kinfolk, nephew, flesh, paternity, motherhood, blood, lineage, fatherhood, maternity, aunt, sister, relative, niece, sisterhood, heredity, clan, brother, consanguinity, relation