Usefull German Words and Phrases

Military / KZ

Wehrmacht - Military

Menschenversuche - human experiments

Arbeit Macht Frei - Work sets free (inscripted over the enterence of Auschwitz)

Jawohl Herr General / Leutenant - yes sir (general, lieutenant)

Lagerführer - Head of camp

Sonderkommando - a group of jews who had to take care of the bodies and the cremation 

Gleichschritt - marching in step

Leichen - corpses

Commands

herein - come in

Aufstehen! - Get up

Other words 

Deutsches /Drittes Reich - The German / Third Reich

Fräulein - Ms. (no longer in use)

Abendrot - Evening red (describes the sky in the evening for example)

Kippe - cigarette

Nutztiere - livestock (animals to use)

Gestell - framework

Entschuldigung - excuse me

Prost - cheers

Spaziergang - walk / stroll

Einwandfrei - perfect

Bursche - boy

Alle Gute Dinge sind drei. - all good things are three 

Insults 

Wichser - Insult (I'm not going to translate it, do that yourself dankeschön)