all

determiner: whole quantity or extent of a particular group or thing
- All the cookies were eaten before dinner.
pronoun: every individual member of a set
- All are invited to the ceremony.
adverb: throughout an uninterrupted period of time
- He studied all night for the exam.
adverb: completely; wholly
- She was all alone in the house.
adverb: used to emphasize a particular quality or the extreme nature of something
- He was all smiles after hearing the good news.