A savanna is a wide, mostly flat land of grass, with only scattered trees — too dry for a thick forest, but not empty sand. School-book pictures are often Africa: a huge sky, animals moving through grass. Though actually, land of this kind also exists in South America and Australia; it is a type of place, not one country’s trademark. Rain usually comes in a wet season, then a long dry one. English also spells it savannah, with an h; both are used for the grassland, and Savannah with a capital S is also a city name in the United States. It is a geography-class word more than a kitchen or street word.