実じっ父ぷ

noun

biological father; real father; natural father

Refers to one's biological father, as opposed to an adoptive, step, or foster father. Often used in formal or legal contexts, or when clarifying family relationships.

See also: 実母

• 彼かれは実じっ父ぷの顔かおを知しらない。

  He doesn't know his biological father's face.

• 戸こ籍せきには実じっ父ぷの名な前まえが記き載さいされている。

  The biological father's name is recorded in the family register.