招待状

1. Origins, structure, and basic meaning

• Structure: 招待状 (しょうたいじょう) is a compound noun for a written message inviting someone to an event.
• Basic usage: 結婚式の招待状が届く makes the received invitation the subject, while 招待状に地図を添える makes the document the item to which a venue map is added.

2. Common pitfalls and similar expressions

• Invitation content and attachment
  • In 招待状に地図を添える, 招待状に is the document receiving the addition and 地図を is the attachment. The invitation itself does not substitute for the map.