A cosmetic procedure is a medical or surgical procedure that is done to improve the appearance of a person's body. TUCK, which is a four letter word, is a type of cosmetic procedure that involves tightening the skin and muscles in order to reduce wrinkles and sagging. Facelift, which is an eight letter word, is another type of cosmetic procedure that involves removing excess skin and fat from the face in order to create a more youthful appearance.