bor·ough /ˈbɝ(ˌ)o, ˈbʌ(ˌ)ro/
1. In England, an incorporated town that is not a city; also, a town that sends members to parliament; in Scotland, a body corporate, consisting of the inhabitants of a certain district, erected by the sovereign, with a certain jurisdiction; in America, an incorporated town or village, as in Pennsylvania and Connecticut.
2. The collective body of citizens or inhabitants of a borough; as, the borough voted to lay a tax.
Close borough, or Pocket borough, a borough having the right of sending a member to Parliament, whose nomination is in the hands of a single person.
Rotten borough, a name given to any borough which, at the time of the passage of the Reform Bill of 1832, contained but few voters, yet retained the privilege of sending a member to Parliament.
Bor·ough, n. O. Eng. Law (a) An association of men who gave pledges or sureties to the king for the good behavior of each other. (b) The pledge or surety thus given.
n 1: one of the administrative divisions of a large city
2: an English town that forms the constituency of a member of