'Enclosed' in the Bible

When Jacob came from Paddan-aram, he arrived safely and in peace at the city of Shechem, in the land of Canaan, and camped in front of the [walled] city.

Then Hamor and Shechem his son came to the gate of their [walled] city [where the leading men would meet] and spoke with the men of the city, saying,

And Husham died, and Hadad the son of Bedad, who defeated Midian in the country of Moab, reigned as his successor. The name of his [walled] city was Avith.

Baal-hanan the son of Achbor died, and then Hadar reigned [as his successor]. His [walled] city was Pau; his wife’s name was Mehetabel the daughter of Matred, the daughter of Mezahab.