noun the pledge or surety thus given.
2. borough ·noun the collective body of citizens or inhabitants of a borough; as, the borough voted to lay a tax.
3. borough ·noun an association of men who gave pledges or sureties to the king for the good behavior of each other.
4. borough ·noun 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.