巣立ち

1. Origins, structure, and basic meaning

• Structure: 巣立ち(すだち) denotes a young bird leaving its nest and, figuratively, a person becoming independent.
• Basic usage: It describes the morning when a young bird raised in the yard's tree left the nest.
  • 庭の木で育ったひなが今朝巣立ちを迎えた。

2. Common pitfalls and similar expressions

• A bird's departure and human independence
  • ひなの巣立ち means a young bird leaving the nest. 娘の巣立ち figuratively describes a daughter leaving her parents' side and becoming independent.