noun
kinship; family relationship
Refers to the relationship between relatives, often used in legal or sociological contexts.
親族関係を証明する書類が必要です。
Documents proving the kinship relationship are required.
親族 means 'relative' or 'kin', while 親族関係 specifically refers to the relationship between relatives.
Compound of 親族 (しんぞく, 'relative') and 関係 (かんけい, 'relation').