retreat

1. Origins, structure, and basic meaning

• Structure: The on reading is たい, and the kun readings are しりぞく and しりぞける. It has 9 strokes and relates to stepping back, retreating, or leaving a place.
• Basic usage: 退く is read しりぞく, and 退院 is read たいいん.

2. Common pitfalls and similar expressions

• 退く / 退院
  • 退く means step down or retreat and is read しりぞく. It describes stepping down from a position or a unit retreating to safety.
  • 長年務めた責任者の座から退くことを決めた。 means “I decided to step down from the leadership position I had held for years.”
  • 退院 means leave the hospital or discharge and is read たいいん. It refers to leaving the hospital after treatment or being discharged.
  • 父は来週退院する予定です。 means “My father is scheduled to leave the hospital next week.”