'Base' in the Bible

The altar was made of wood, three cubits high and two cubits long. Its corners, base, and sides were of wood. He told me, "This table stands in the LORD's presence."

"Here are the measurements of the altar in cubits that were a cubit and a handbreadth long: its base is a cubit long and a cubit wide, and its border around the edge at one handbreadth is to be the height of the altar.

From the base on the ground to its lower edge is to be two cubits, with its width to be one cubit. From the lesser ledge to the larger edge is to be four cubits. Its width is to be one cubit.

It is to have a ledge fourteen cubits long by fourteen cubits wide around the four sides. Its border is to be half a cubit and its base is to be a cubit all around, with its steps facing east."