16.6.4.4 Tout le monde and n' importe qui

Tout le monde as well as n' importe qui describe that everyone can be initiator or can be affected by the action.
  Examples
N' importe qui est capable de le faire, ce n' est pas grand chose.
  Tout le monde est capable de le faire, ce n' est pas grand chose.
    Everyone is able to do this, it is nothing special.

However, if you mean anybody you need to use n' importe qui.
If you mean really everybody, both tout le monde as well as n' importe qui can be used.

  Examples
Il a salué n' importe qui.
    He has greeted anybody.
  Il a salué tout le monde.
    He has greeted everybody.
Ce n' est pas n' importe qui, qui le dit.
    It is not anybody, who said this.






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