1.
(someone else's) child
Polite term used to refer to another person's child or children. This is the respectful form used when speaking about or to someone else's children.
お子さんは何歳ですか。
How old is your child?
Polite way to ask about someone's child
お子さんは元気ですか。
How is your child (doing)?
お子さんがいらっしゃいますか。
Do you have children?
Very polite form using いらっしゃる
お子さんは学校で何を勉強していますか。
What is your child studying at school?
お子さんの成長は早いですね。前に会った時よりずっと大きくなりましたね。
Children grow up so fast. Your child has gotten much bigger since the last time I saw them.
お子さん is the polite form used when referring to someone else's child. For your own children, use 子供 or うちの子.
RELATED TERMS:
- 子供: neutral term for child/children (can be used for own or others')
- 息子さん: (someone else's) son
- 娘さん: (someone else's) daughter
- うちの子: my child (humble)
The お〜さん pattern is common for polite reference to people: お客さん (customer), お医者さん (doctor).
[Register: Polite]