A place card is a piece of paper indicating what table a guest at an event, such as a wedding or banquet, is assigned to sit. Place cards generally have the guest's name and table number, and frequently have some design as well to add style.
Your place cards will typically come in one of two types: flat or tent. Flat place cards are flat, and are often used in conjunction with a place card holder. Tent cards, on the other hand, are meant to be folded in half and stand on their own. They are also sometimes called foldable cards.