実 子(じっし)

じっし

noun

one's own child; biological child

formalfamily

1. one's own child; biological child; natural child

A child who is biologically related to their parent, as opposed to an adopted or step-child. A legal and formal term.

実子(じっし)と養子(ようし)の区別(くべつ)はない。

There is no distinction between biological and adopted children.

法律上(ほうりつじょう)、実子(じっし)も養子(ようし)も同(おな)じ相続権(そうぞくけん)を持(も)つ。

Legally, both biological and adopted children have the same inheritance rights.

彼(かれ)は実子(じっし)のように可愛(かわい)がっている養子(ようし)がいる。

He has an adopted child whom he cherishes as if they were his own.

A formal/legal term for a biological child. In everyday conversation, people would simply say 自分(じぶん)の子(こ) (one's own child). 実子(じっし) appears primarily in legal, medical, and formal contexts.

Watch out

Not to be confused with 実施(じっし) (implementation, carrying out), which has the same reading.

Common collocations

実子(じっし)と養子(ようし): biological and adopted children
実子(じっし)のように: as if one's own child
実子(じっし)同様(どうよう): same as a biological child

Related words

養子(ようし): adopted child
継子(ままこ): stepchild
里子(さとご): foster child
実親(じつおや): biological parent
養親(ようしん): adoptive parent

Related Words

Related: 養子(ようし) (adopted child)

Related: 継子(ままこ) (stepchild)

Related: 養親(ようしん) (adoptive parent)

Related: 養女(ようじょ) (adopted daughter)

general

Added 2026.4.1 1:25 · Revised 2026.9.2 13:02

21000/21069_jisshi