From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( a.) Belonging to, or suiting, those living in a city; cultivated; polite; urbane; as, urban manners.

(2): ( a.) Of or belonging to a city or town; as, an urban population.

American Tract Society Bible Dictionary [2]

A Roman disciple, Paul's companion in Christian labors,  Romans 16:9 .

The Nuttall Encyclopedia [3]

The name of eight Popes:

ope from 223 to 230;

ope from 1088 to 1099, warm promoter of the first Crusade;

ope from 1185 to 1187;

ope from 1261 to 1264;

ope from 1362 to 1370, man of an ascetic temper;

ope from 1378 to 1389, in his reign the schism in the papacy began which lasted 40 years;

ope in 1590; and

ope from 1623 to 1644, founded the College de Propaganda Fide.

Kitto's Popular Cyclopedia of Biblial Literature [4]

Ur´ban, a disciple at Rome, and one of Paul's companions in labor . Nothing is known of him; but his name shows him to have been a Roman.