This is the 276th most frequent Croatian word.
djeca
Children.
In this sentence, 'djeca' is used as the subject in the nominative plural form to denote the group of children performing the action.
Djeca se igraju u parku.
The children are playing in the park.
Here, 'djecu' is the accusative plural form of 'djeca', indicating the object of the verb 'paze'.
Roditelji paze na djecu tijekom igre.
The parents are watching over the children during playtime.
In this case, 'djeci' is the locative plural form, used after the preposition 'o' to indicate the topic of discussion.