The term 'of land expanse' can be summarized by the crossword solution 'TRACT, ' which is a five-letter word. A TRACT is an area of land, usually of considerable size, that is used for a specific purpose or owned by a particular group. It is often used to refer to a parcel of land that has been divided into lots for residential or commercial development. Tracts are also used to refer to large areas of land that are used for agricultural purposes, such as farms and ranches.