This is the 114th most frequent Dutch word.
iedereen
"Everyone" or "everybody."
In this sentence, 'iedereen' is used as the subject to indicate inclusion of all people without exception.
Iedereen is welkom op het feest.
Everyone is welcome at the party.
In this context, 'iedereen' is used in a question, addressing all individuals in a group.
Heeft iedereen zijn ticket bij zich?
Does everyone have their ticket with them?
Here, 'iedereen' functions as the subject, describing a collective action performed by the group.