THESAURUS
Sib
affiliated, agnate, akin, allied, ancestry, avuncular, blood, blood relation, blood relative, clansman, closely related, cognate, collateral, collateral relative, congeneric, connections, consanguine, consanguinean, consanguineous, distaff side, distant relation, distantly related, enate, family, flesh, flesh and blood, folks, foster, friendly, german, germane, kin, kindred, kinfolk, kinnery, kinsfolk, kinsman, kinsmen, kinswoman, kith and kin, matrilateral, matrilineal, matroclinous, near relation, next of kin, novercal, of the blood, patrilateral, patrilineal, patroclinous, people, posterity, receptive, related, relations, relatives, sibling, spear kin, spear side, spindle kin, spindle side, sword side, tribesman, uterine, uterine kin, well-disposed
ROGET THESAURUS
Sib
Consanguinity
N
consanguinity, relationship, kindred, blood, parentage, filiation, affiliation, lineage, agnation, connection, alliance, family connection, family tie, ties of blood, nepotism, kinsman, kinfolk, kith and kin, relation, relative, connection, sibling, sib, next of kin, uncle, aunt, nephew, niece, cousin, cousin- german, first cousin, second cousin, cousin once removed, cousin twice removed, ear relation, distant relation, brother, sister, one's own flesh and blood, family, fraternity, brotherhood, sisterhood, cousinhood, race, stock, generation, sept, stirps, side, strain, breed, clan, tribe, nation, related, akin, consanguineous, of the blood, family, allied, collateral, cognate, agnate, connate, kindred, affiliated, fraternal, intimately related, nearly related, closely related, remotely related, distantly related, allied, german.