The Oxford Thesaurus An A-Z Dictionary of Synonyms - kinship n.

1) consanguinity, (blood) relationship, (family) ties, (common) descent, lineage, flesh and blood: At that time, several of the royal houses of Europe were connected by kinship. 2) connection, correspondence, parallelism, relationship, similarity, association, agreement, alliance; affinity: There is a clear kinship among the Germanic languages. She felt a kinship with other adopted children.