biological child; one's own child
Refers to a child related by blood, as opposed to an adopted or stepchild. Often used in legal or family contexts.
He raised the child as if it were his own.
Please explain the difference between a biological child and an adopted child.
He is said to be the president's biological child.
He legally acknowledged the child as his own.
Since he had no biological children, he adopted one.
実子 is a child related by blood, while 養子 is a child brought into the family through legal adoption.
実子 denotes one's own biological child, whereas 継子 is a spouse's child from a previous relationship with no blood tie.
Used when referring to children as people; for counting sons/daughters in family contexts, other expressions may be preferred.
Compound of 実 (じつ, 'real, true') and 子 (し, 'child'). The reading じっし results from a regular sound change where つ + し becomes っし.