A tee-shirt is a type of garment that is typically made from cotton and has short sleeves, a round neckline, and is designed to be worn on the upper body. It can come in various styles, colors, and designs, making it a versatile piece for any wardrobe. The name "tee-shirt" comes from the fact that it is typically worn over a person's shirt or blouse, creating an outfit that covers their torso while still showing off the tee-shirt itself.