Letters that make urbs
s, b, r, u
are letters that make 'urbs'
Words within urbs
BS, urb, Ur, Rb
are words within 'urbs'
Anagrams of urbs
burs, rubs
are anagrams of 'urbs'
Words created by adding a letter to the beginning or end of urbs
burbs, curbs
are words created by adding a letter to 'urbs'