'Fortified' in the Bible

Nevertheless, the people who live in the land are strong, and the cities are fortified and very large; and moreover, we saw the descendants of Anak there.

but we ourselves will be armed ready to go before the sons of Israel, until we have brought them to their place, while our little ones live in the fortified cities because of the inhabitants of the land.

and Beth-nimrah and Beth-haran as fortified cities, and sheepfolds for sheep.