councillor

noun

1. A member of a council.
2. In particular, a representative elected to a local authority, such as a city council: a city councillor.

   “The comments were made at a council meeting last month, during which one councillor questioned whether changing the names would be pushing reconciliation efforts along too quickly. […] At a city council meeting on Oct. 8, Campbell River councillors discussed a letter sent by the B.C. Geographical Names Office inviting comments on the name changes.”

   “And it had been a close-run thing for many of the nearest - perhaps too close. Councillor Renee Spector, a senior member of Birmingham City Council planning committee, told the local press that the accident might force "a rethink" about the way it considered future applications. "There is a case for a buffer zone, but the problem is that land is at such a premium it is difficult to insist on a large distance between houses and railway lines," she said.”

3. The title for someone elected to the role of councillor in a local council.