Alderman (noun)

1. A member of a municipal legislative body in some countries, typically elected.
2. A member of the board of aldermen in a city or borough in the US.

Origin:

Old english ælderman, ealdorman, from æld "old" + man "man".

Examples:

1. The aldermen voted to approve the new zoning ordinance.
2. The alderman proposed a resolution to address the city's traffic problem.
3. The alderman represents the interests of his constituents on the city council.
4. The alderman was re-elected for another term in the recent municipal election.
5. The alderman is known for his advocacy for public transportation and environmental issues.