a location where the usable portion of grain is separated from its outer covering. Grain is threshed by being beaten to crack the husks and separate the grain from the stems. It is then winnowed by being tossed in a flat basket in a breeze, allowing the husks (chaff), which are lighter, to blow away. A good location for this process is a flat area on a hilltop; this was also an ideal spot for offering sacrifice (see 1 Chron. 21.18–27).