Threshing — floor — Which was in a place covered at the top, but open elsewhere, whither Ruth might easily come. And this work of winnowing corn was usually ended with a feast.
Related Commentaries of Ruth 3:2
Ruth 3:2
2 And now is not Boaz of our kindred, with whose maidens thou wast? Behold, he winnoweth barley to night in the threshingfloor.