Write about code language used by Hitler?

Hitler used language with care while dealing with Jews. Some of the crude words were coded. For example, the words 'kill' or 'murder' were never used by Germans in any of their official documents. These words were replaced by 'special treatment', 'final solution', 'selection' etc. The word 'evacuation' was a coded word which was used for deporting the people to the gas chambers. Gas chambers were called as 'disinfection- areas'.