all vs everything

all

noun
  • Everything that one is capable of. 

  • The totality of one's possessions. 

adj
  • All gone; dead. 

det
  • Every individual or anything of the given class, with no exceptions (the noun or noun phrase denoting the class must be plural or uncountable). 

  • Throughout the whole of (a stated period of time; generally used with units of a day or longer). 

  • Only; alone; nothing but. 

adv
  • A quotative particle, compare like. 

  • So much. 

  • Apiece; each. 

  • Wholly; entirely; completely; totally. 

pron
  • The only thing(s). 

  • Used after who, what, where, how and similar words, either without changing their meaning, or indicating that one expects that they cover more than one element, e.g. that "who all attended" is more than one person. (Some dialects only allow this to follow some words and not others.) 

  • Everything. 

  • Everyone. 

everything

noun
  • everything 

pron
  • Considerable effort. 

  • A state of well-being (from all parts of the whole). 

  • All the things under discussion. 

  • The most important thing. 

  • Many or most things. 

How often have the words all and everything occurred in a corpus of books? (source: Google Ngram Viewer )