What does heil mean in German?

"Heil" in German means "hail" or "salute". It is often used in the phrase "Heil Hitler", which was a Nazi salute and greeting.

It is important to note that the word "heil" has a negative connotation due to its association with the Nazi regime.

While the word itself is not inherently bad, it is best avoided in any context except when discussing history or the Nazi era.