'Upper' in the Bible

Who smote Abimelech the son of Jerubbesheth? did not a woman cast the upper stone of a handmill from the wall, that he died in Thebez? why did ye go near the wall? then say thou, Thy servant Urijah the Hittite is dead also.

And the king was much moved, and went up to the upper chamber of the gate, and wept; and as he went, he said thus: O my son Absalom, my son, my son Absalom! would God I had died in thy stead, O Absalom, my son, my son!