noun
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)
彼女は一人子で、兄弟がいません。
She is an only child and has no siblings.
一人子は甘やかされがちだと言われる。
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.
Compound of 一人 (ひとり, 'one person') and 子 (こ, 'child'). The reading ご is a rendaku form of こ.