Marriage relationship - Engumikankei

…In other words, they are called relatives (in Japanese) or relatives (in Chinese, lineage and marriage), and sometimes they are called kin, but in terms of terminology, the word kin is more appropriate to avoid confusion. Kinship is a relationship between families in which the family head's family is linked to each other by personal kinship relationships, and is a network of family associations owned by a specific family, including the relationship between a branch family of the same family and its main family, as well as relationships by adoption. The relationship by adoption here includes not only kinship but also the relationship between a family that has adopted an adopted child as a relative of the family head and their birth family. …

*Some of the terminology explanations that refer to "marriage relationships" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…つまり，親類(日本語)とか親戚(中国語で宗族と姻戚)と呼ばれ，それを親族とも呼ぶこともあるが，術語としてはまぎらわしさを避けるため親類の語が適切である。親類は個人単位の親族関係により家長の家族相互が結びつけられている家と家の関係で，特定の任意の家のもつ家連合のネットワークであって，同族のうち親族分家とその本家の関係，および縁組関係を合わせ含む。ここでいう縁組関係は，姻戚だけでなく，養子女を家長の親族関係者として養取した家と，彼らの生家との関係をも含む。…

※「縁組関係」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報