noun
my child; my son
Humble term used to refer to one's own child, especially a son, when speaking to others. Conveys modesty by literally meaning 'pig child'. Not used for others' children.
豚児がいつもお世話になっております。
My son is always in your care.
豚児の入学式にご出席いただきありがとうございます。
Thank you for attending my child's school entrance ceremony.
noun
piglet
Rare literal meaning; almost never used in modern Japanese outside of historical or literary contexts. The humble sense is overwhelmingly more common.
古い文献では「豚児」が文字通り子豚を指すことがある。
In old texts, 豚児 can literally refer to a piglet.