許可証

1. Origins, structure, and basic meaning

• Structure: 許可証 is a noun read きょかしょう, referring to a document or badge proving permission for an activity or access.
• Basic usage: Use 許可証を見せる when presenting it for inspection and 許可証の有効期限 when discussing its period of validity.
  • 入口で作業用の許可証を係員に見せた。 describes showing a work permit to an attendant at the entrance; 許可証の有効期限を事前に確認した。 describes checking the permit's expiration date in advance.

2. Common pitfalls and similar expressions

• 許可証を係員に見せる
  • を marks the permit being shown, while に marks the attendant who sees it.
• 許可証の有効期限
  • の links the validity period to the permit whose information it is.
• 許可証 and 許可
  • 許可 is the decision or state of permission, whereas 許可証 is the concrete document or badge that proves it.