The term SUNBATHER'S SHADE can be solved by the three letter word TAN. Sunbather's shade is a term used to describe the protection from the sun that someone who is sunbathing may use. This could include an umbrella, a hat, or other items that provide shade from the sun's rays. The term TAN is often used to describe the result of sunbathing, which is a darker skin tone due to the exposure to the sun's ultraviolet rays.