What does the greek root urb mean?

The Greek root "urb" doesn't exist. You might be thinking of the Latin root "urb", which means "city" or "town".

Here are some examples of words with the Latin root "urb":

* Urban: Relating to, or characteristic of, a city or town.

* Suburb: An outlying district of a city or town.

* Urbanize: To make or become urban.

* Urbane: Sophisticated and refined in manner.

It's important to remember that the roots of words can come from different languages, so it's helpful to specify the language you are referring to when asking about a root.