The term 'Sahara Feature' is composed of two crossword solutions, DUNE (4 letters) and SANDDUNE (8 letters). The Sahara is the world's largest hot desert, located in North Africa. It is home to a variety of features, including dunes and sand dunes. Dunes are mounds of sand formed by wind erosion, while sand dunes are larger mounds of sand that form when wind-blown sand accumulates in a particular area. Both dunes and sand dunes are common features of the Sahara Desert.