everything

As a noun taxonomy

is the science or the technique used to make a classification.

As a pronoun everything is

(literally) all the things under discussion.

As a pronoun everything

is (literally) all the things under discussion.

As an adjective omnispective is

beholding everything; all-seeing.

As a pronoun everything

is (literally) all the things under discussion.

As an adjective omnipercipient is

perceiving everything.

As a pronoun everything

is (literally) all the things under discussion.

As a noun totalism is

a social, economic and/or political system in which some authority (eg the state or "the market") wields absolute power; totalitarianism.