The beginning plans, the plans that preceded the Final Solution was the establishment of extermination camps, in 1941-42.
The Final Solution was the name of the plan. The Allies knew of the final solution through intel, but thought it was a military plan, not plans for the Holocaust.
Hitler called his plan "The Final Solution to the Jewish Question." This means to physically liquidate the Jews and other inferior races.
The Final Solution refers to Hitler's intention to eliminate the Jews from Europe, which for a while involved four deportation plans which was eventually discarded and then became mass killings of Jews which resulted in the final solution becoming the mean the mass murder of Jews in Europe.
to save Germany from the (supposed) Jewish menace.
Hitlers idea of the Final Solution
It was called the Final Solution [of the Jewish Question]. Please see related question.
Solution is a noun and final is an adjective and the Final Solution is a noun phrase or, arguably, a proper noun.
The SS and Nazi leaders meet at Berlin in a suburd of Wansee to make plans for the starting of mass killings of the Jews aka "Final Solution" or "the Jewish problem."
the ghettos came before the final solution
The Final Solution went on for about three years.
The Final Solution was the plan to rid of Europe's Jews.
Children were treated good in the final solution