What does the term "Final Solution" mean?
This is a term the Nazis used in code for their plan. The plan to kill off the whole Jewish population. It was set up to do in certain stages and the Nazis had it all planned out and put into code names for all such actions they planned to do.
http://www.ushmm.org/wlc/en/article.php?ModuleId=10005151
http://www.ushmm.org/wlc/en/article.php?ModuleId=10005151