זֹ֛את נַחֲלַ֥ת בְּנֵי־גָ֖ד לְמִשְׁפְּחֹתָ֑ם הֶעָרִ֖ים וְחַצְרֵיהֶֽם׃
This is the inheritance of the children of Gad according to their families, the cities and the villages thereof.
Rashi on Joshua
The cities and their villages. Referring to cities surrounded by walls.