all

As an adverb all

is intensifier.

As a determiner all

is every individual or anything of the given class, with no exceptions (the noun or noun phrase denoting the class must be plural or uncountable).

As a noun all

is everything possible.

As a conjunction all

is although.

As an initialism ALL

is initialism of lang=en.

As an adjective monothetic is

pertaining to or based on a single basic idea or principle.