This is the 615th most frequent Estonian word.
kõikide
"Kõikide" means "of all" in English.
In this sentence, 'kõikide' is used in the genitive plural form to indicate possession for 'all the children'.
Kõikide laste mänguväljak oli väga populaarne.
The playground for all the children was very popular.
Here, 'kõikide' is in the genitive plural form and functions as the object of the preposition 'toetusele', denoting 'the support of everyone'.
Ta sai kõigile selgeks tänu kõikide toetusele.
He managed to get through it thanks to the support of everyone.
In this example, 'kõikide' signifies the perspective of all individuals, functioning in a prepositional phrase.