This is the 262nd most frequent Lithuanian word.
vaiko
"Vaiko" means "of the child" (possessive form of "vaikas," which means "child").
In this sentence, 'vaiko' is in the genitive case, showing possession, as it indicates that the toys belong to the child.
Vaiko žaislai yra išmėtyti po kambarį.
The child's toys are scattered across the room.
Here, 'vaiko' is also in the genitive case, used after the verb 'laukia' to specify what is being awaited.
Aš laukiu vaiko gimimo.
I am waiting for the birth of a child.
In this sentence, 'vaiko' is again in the genitive case, used after the preposition 'apie' to specify what is being discussed.