'Upper' in the Bible

Who killed Abimelech the son of Jerub-bosheth, if not a woman who threw an upper millstone on him from [atop] the wall and he died at Thebez? Why did you go near the wall?' Then you shall say, 'Your servant Uriah the Hittite also died.'"

The king was upset, and he went up to the upper room of the gate and wept. He said as he went, "My son, Absalom, my son, my son, Absalom. {If only} I had died instead of you, Absalom, my son, my son."