noun
non-biological parent; step-parent; parent-in-law
Refers to a parent figure who is not biologically related, such as a step-parent or parent-in-law. Often used in legal or formal contexts.
彼は義親との関係に悩んでいる。
He is struggling with his relationship with his non-biological parent.
法律上、義親にも扶養義務が生じる場合がある。
Legally, there are cases where a non-biological parent also has a duty of support.