The crossword solution for the term 'TURNS RED, SAY' is DYES. DYES are substances that are used to impart color to a material or object. They are often used to color fabrics, paper, and other materials. DYES can also be used to change the color of food and beverages. DYES are typically made from organic compounds, such as plant extracts, minerals, and synthetic chemicals. When applied to a material, DYES can cause it to turn red, or any other color depending on the type of dye used.