Refers to a child with no siblings. The synonym 一人っ子 (ひとりっこ) is more common in everyday speech.
See also: 一人っ子 (ひとりっこ)
She is an only child and has no siblings.
It is said that only children tend to be spoiled.
More colloquial and common in daily conversation; 一人子 is slightly more formal or literary.
Standard kanji spelling; high priority in news and frequency lists.
Commonly seen; the kanji 子 is used for 'child' while the first part is in kana.
Less common variant using 独 for 'alone'.
Compound of 一人 (ひとり, 'one person') and 子 (こ, 'child'). The reading ご is a rendaku form of こ.