The Dress item in the Animal Crossing New Horizons project belongs to the clothing item. A reasonable mix of Dresses can better decorate yourself, your home, or even an island landscape. Some Dress items can be purchased at the Island Shop, Able Sisters, Nook's Cranny, or Nook Shopping using Animal Crossing Bells. Dresses items that are not directly purchasable can only be obtained by repeating quests. Or simply, you can choose to Buy Animal Crossing Clothing - Dresses here.