The term 'Something to Look Through' can be summarized by three crossword solutions: IRIS, PANE, and Lookingglass. IRIS is a thin membrane in the eye that controls the amount of light entering the eye. PANE is a sheet of glass in a window or door. Lookingglass is a reflective surface, such as a mirror, that allows one to see their reflection. All three terms refer to objects that allow one to look through them in some way.