1. To represent; symbolize.2. To advocate or support: stands for freedom of the press.3. To put up with; tolerate: "We will not stand for impertinent behavior."
{f} be a symbol of; support-; represent; tolerate; allow (in a negative way; e.g.: "Young lady, you better start behaving and watching what you say, I will not stand for your language and behavior any longer")
The ideas or attitudes that someone or something stands for are the ones that they support or represent. The party is trying to give the impression that it alone stands for democracy = represent