a person who believes in or supports democracy 民主主義者 - Democrat(abbreviation D, Dem.)
a member or supporter of the Democratic Party of the US （美國）民主黨黨員，民主黨人，民主黨支持者 see also social democracy
Word Originlate 18th cent. (originally denoting an opponent of the aristocrats in the French Revolution of 1790): from French démocrate, on the pattern of aristocrate ‘aristocrat’.