The term 'HOME ON GILLIGAN'S ISLAND' can be summarized by the crossword solution of 'HUT', which is a three-letter word. A HUT is a small, primitive dwelling that is usually made of natural materials such as wood, straw, and mud. ON the classic television show 'Gilligan's Island', the main characters lived in a HUT ON the island. The HUT was their HOME away from HOME, and it provided them with shelter and protection from the elements.