'City' in the Bible

Wisdom strengthens the wise man more than ten rulers who are in a city.

So then, I have seen the wicked buried, those who used to go in and out of the holy place [but did not thereby escape their doom], and they are [praised in spite of their evil and] soon forgotten in the city where they did such things. This too is futility (vanity, emptiness).

There was a little city with few men in it and a great king came against it and besieged it and built great battlements against it.

But there was found in it a poor wise man, and by his wisdom he rescued the city. Yet no man [seriously] remembered that poor man.