The crossword solutions for the term 'lock or ringlet' are 'TRESS, ' which is a five-letter word. A TRESS is a type of hairstyle in which the hair is divided into sections and then twisted, curled, or braided together. It is commonly used to create a variety of looks, from tight curls to loose waves. Tresses can also be used to create updos, buns, and other intricate styles. Tresses are often seen in traditional African hairstyles, as well as in modern fashion.