A lightweight dress is a type of clothing that is made from light, airy fabrics and is usually worn in warm weather. The term 'lightweight dress' can also refer to a SARI, which is a traditional garment worn by women in India and other South Asian countries. A SARI is typically made from lightweight fabric such as cotton or silk, and is draped around the body in a specific way. It is often decorated with intricate embroidery or beading, and is a popular choice for formal occasions.