This is the 514th most frequent Serbian word.
дјеце
The Serbian word "дјеце" means "children" (genitive case).
Here, 'дјеце' is in the genitive form used to indicate the possession or quantity of children in the playground.
Игралиште је пуно дјеце.
The playground is full of children.
In this sentence, 'дјеце' is in the genitive plural form indicating the children whose names are to be learned.
Научите имена све дјеце у разреду.
Learn the names of all the children in the class.
Here, 'дјеце' also appears in the genitive case to express the interaction with a group of children.