All or everything

[gillybean]

What's the difference between all and everything?

[Alan]

They both suggest generally the same: totality. All is a so-called determiner and suggests the entirety of something or the whole of something. So we have: all the world/all the time/all the exercises and so on. Everything is a pronoun referring to things and means each and every one thing. So we have: She understands everything/I have forgotten everything/Their children mean everything to them.
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English as a Second Language
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