al ‧ der ‧ man /ˈɔːldəmən $ ˈɒːldər-/ BrE AmE noun ( plural aldermen /-mən/) [countable]
[ Language: Old English ; Origin: ealdorman 'governor in Anglo-Saxon England' , from ealdor 'parent' + man ]
1 . an elected member of a town or city council in the US
2 . an important member of a town council in Britain in the past