Real Dictionary

all
predeterminer: You use all to indicate that you are referring to the whole of a particular group or thing or to everyone or everything of a particular kind.

all in American English
the whole extent or quantity of
adjective: the whole of (used in referring to quantity, extent, or duration)
noun: one's whole interest, energy, or property
pronoun: the whole quantity or amount

all-
All- is added to nouns or adjectives in order to form adjectives which describe something as consisting only of the thing mentioned or as having only the quality indicated.

all- in American English
wholly, entirely, or exclusively
combining form

all- in British English
combining form