This is the 23rd most frequent Estonian word.
kõik
"Kõik" means "all" or "everything" in English.
'Kõik inimesed' translates to 'all people', showing 'kõik' as a quantifier.
Kõik inimesed peaksid hoolima keskkonnast.
All people should care about the environment.
'Kõik' is used here as a pronoun referring to 'everything'.
Kõik on korras.
Everything is fine.
'Kõigile' is the allative case of 'kõik', meaning 'to everyone'.