The term REP. OR DEM. is an abbreviation for Representative or Democrat, which are two of the major political parties in the United States. The crossword solutions for this term are POL (3 letters) and PTY (3 letters). POL stands for Politician, which is a person who is professionally involved in politics, typically by holding public office. PTY stands for Political Party, which is an organized group of people with similar political aims and opinions that seek to influence public policy by nominating candidates and campaigning for their election.