What is the meaning of all?

adjective

• Quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class.
  • usage: "we sat up all night"; "ate all the food"; "all men are mortal"; "all parties are welcome"
• Completely given to or absorbed by.
  • usage: "became all attention"

adverb

• To a complete degree or to the full or entire extent (`whole' is often used informally for `wholly'. )
  • usage: "he was wholly convinced"; "entirely satisfied with the meal"; "it was completely different from what we expected"; "was completely at fault"; "a totally new situation"; "the directions were all wrong"; "it was not altogether her fault"; "an altogether new approach"; "a whole new idea"
  • synonyms: wholly, entirely, completely, totally, altogether, whole