Kinship
WordNet
noun
(1) A close connection marked by community of interests or similarity in nature or character
"Found a natural affinity with the immigrants"
"Felt a deep kinship with the other students"
"Anthropology's kinship with the humanities"
(2) (anthropology) relatedness or connection by blood or marriage or adoption
WiktionaryText
Noun
- relation or connection by blood, marriage or adoption
- relation or connection by nature or character