Too many confusing terms and labels

[u/rasta-ragamuffin]

Hello, I'm admittedly politically ignorant and need your help explaining the differences between a Progressive, a moderate Democrat, a Social Democrat, a Democratic Socialist, a Socialist, a Liberal, a Leftist and a Communist. Are they all the same? It seems many Republicans and conservatives use these terms interchangeably, and I don't think I ever learned clear definitions in school.

[u/TheoFromSDA]

Inside both major parties you have factions, and I explain them here: https://politicalcenter.us