The Word 'all' is:
- a noun, a Word for everything that one has or owns;
- an adjective, a Word used to describe a noun;
- an adverb, a Word used to modify a verb, an adjective or another adverb;
- an indefinite pronoun, a Word that takes the place of a noun for an unknown or unnamed complete quantity.
Examples:
He gave his all to the rescue of the victims.
- noun, direct object of the verb 'gave'.
All visitors will receive a booklet about the zoo.
- adjective, describes the noun 'visitors.
He walked to the bus in the rain and got his feet all wet.
- adverb, modifies the adjective 'wet'.
All of the costumes were made by the students.
- indefinite pronoun, takes the place of a noun for the total quantity.