A "party congress" refers to a convention of members of a political party for the purpose of discussing and making decisions on matters related to the party and its policies. Synonyms for "party congress" include "national convention," "delegate convention," and "party conference." These events are often held at regular intervals and are crucial for shaping a political party's agenda and electing its leaders. The terms "convention" and "conference" can be used interchangeably to describe such gatherings. While "delegate convention" emphasizes the importance of voting and representation, "national convention" highlights the wider scope of the event's discussion and decision-making.