巣す離ばなれ

noun, noun or participle which takes 'suru', intransitive verb

leaving the nest; becoming independent

Literally refers to young birds leaving the nest; figuratively used for young people moving out of their parents' home or becoming independent. Often used with する to describe the act of becoming independent.

See also: 巣立つ (すだつ)

• 息子むすこが大だい学がく進しん学がくを機きに巣す離ばなれした。

  My son left the nest when he went to university.