88 (eighty-eight) is the natural number following 87 and preceding 89.

The Nazi salute, also known as the Hitler salute, or the Sieg Heil salute, is a gesture that was used as a greeting in Nazi Germany. The salute is performed by extending the right arm from the shoulder into the air with a straightened hand. Usually, the person offering the salute would say "Heil Hitler!", "Heil, mein Führer!", or "Sieg Heil!". It was officially adopted by the Nazi Party in 1926, although it had been used within the party as early as 1921, to signal obedience to the party's leader, Adolf Hitler, and to glorify the German nation. The salute was mandatory for civilians but mostly optional for military personnel, who retained a traditional military salute until the failed assassination attempt on Hitler on 20 July 1944.