1. 民主党党员;民主党支持者
A Democrat is a member or supporter of a particular political party which has the word 'democrat' or 'democratic' in its title, for example the Democratic Party in the United States.

2. 民主主义者;民主人士
A democrat is a person who believes in the ideals of democracy, personal freedom, and equality.

1. an advocate of democratic principles

Synonym: populist