What is a "shirt"?

A shirt is a type of garment that covers the upper body and typically has sleeves, a collar, and a buttoned or zippered front. Shirts come in various styles, fabrics, and designs, and are worn by both men and women. They are often made of cotton, linen, or synthetic materials, and can be casual or formal in style. Shirts can be worn as a standalone garment, or layered with other clothing such as jackets or sweaters. Some common styles of shirts include t-shirts, polo shirts, dress shirts, and button-up shirts.