This is the 647th most frequent German word.
all
"All" in German means "everything" or "everyone" and can also mean "universe" or "cosmos" depending on context.
Here, 'alle' is used as a plural determiner meaning 'all' to emphasize the entirety of people overall.
Alle Menschen sind einzigartig.
All people are unique.
Here, 'alles' means 'everything', referring to the whole range of possibilities or options in this context.
Ich habe alles versucht, um das Problem zu lösen.
I tried everything to solve the problem.
In this context, 'alles' means 'all' in the sense of 'the whole sum' or what is considered the totality.