Outside of Hausaland, communities of Hausa merchants have stimulated the use of Hausa as a lingua franca across a broad area of the African Sahel and savanna region.

• 在豪萨兰之外，豪萨商人族群已带动豪萨语的使用，成为非洲萨赫勒和稀树草原等广大地区的一种通用语。