relevant

1. Origins, structure, and basic meaning

• Structure: The on reading is がい. It has 13 strokes and relates to being relevant or applicable.
• Basic usage: 該当 is read がいとう, and 当該 is read とうがい.

2. Common pitfalls and similar expressions

• 該当 and 当該
  • 該当 means apply or correspond. It is used predicatively, as in がいとうする, to mean meeting a condition or matching an item.
  • 応募条件に該当するか事前に確認してください。 means “Please check in advance whether you meet the application requirements.”
  • 当該 means relevant or applicable. It modifies a following noun to identify the relevant item or matter already under discussion.
  • 当該商品を購入した方には個別に連絡します。 means “We will contact those who purchased the relevant product individually.”