A nose stud is a piece of jewellery worn on the nose, usually on the nostril. There are many synonyms for a nose stud, including nose ring, nose pin, nose piercing, nasal stud, and nose screw. The type of nose stud chosen depends on personal preference and style. A nose ring typically refers to a loop-shaped piece of jewellery that is worn through the nostril. A nose pin is a thin, straight piece of jewellery with a stud on the end that is inserted into the nostril. A nose piercing refers to the act of getting a hole in the nose and inserting jewellery. A nasal stud or nose screw has a curved wire that is twisted into place inside the nostril.