'Fortified' in the Bible

It happened, when Joshua and the children of Israel had finished killing them with a very great slaughter until they were consumed, and the remnant which remained of them had entered into the fortified cities,

Now therefore give me this hill country, of which Yahweh spoke in that day; for you heard in that day how the Anakim were there, and great and fortified cities. It may be that Yahweh will be with me, and I shall drive them out, as Yahweh spoke."

The border turned to Ramah, to the fortified city of Tyre; and the border turned to Hosah. It ended at the sea by the region of Achzib;

The fortified cities were Ziddim, Zer, Hammath, Rakkath, Chinnereth,