弟妹

1. Origins, structure, and basic meaning

• Structure: 弟妹 is read as ていまい and means younger siblings.
• Basic usage: It refers collectively to younger brothers and sisters who are cared for or who send letters.

2. Common pitfalls and similar expressions

• Caring for younger siblings
  • 弟妹: He worked while caring for his young brother and sister. Example: 彼は働きながら幼い弟妹の世話をした。
• Keeping letters from younger siblings
  • 弟妹: Letters received from younger siblings are carefully preserved. Example: 弟妹から届いた手紙を大切に保管している。