The term 'see-through items' can refer to a variety of objects, including LENSES (6 letters), panes (5 letters), contact LENSES (13 letters), and two-way mirrors (13 letters). LENSES are curved pieces of glass or plastic used to correct vision or to magnify an image. Panes are thin sheets of glass or other transparent material used in windows and doors. Contact LENSES are thin, curved LENSES that are placed directly on the eye to correct vision. Two-way mirrors are partially reflective surfaces that allow people to see through them from one side but not the other.