"초대장" is the Korean word for "invitation card." It is commonly used to invite people to events such as weddings, birthday parties, or other celebrations. These cards typically include important details like the date, time, location, and purpose of the event. In Korean culture, sending a 초대장 is a way to show respect and courtesy to guests. The design of the card can vary, often reflecting the theme of the event. Some may be simple, while others are more elaborate, featuring decorative elements or personal touches to make them special.