This is the 17790th most frequent Polish word.
zwierzakowi
The word "zwierzakowi" is the dative singular form of "zwierzak," meaning "to/for the animal" or "to/for the pet."
The word 'zwierzakowi' is in the dative case, indicating the indirect object (the pet receiving the bed).
Podarowałem zwierzakowi nowe legowisko.
I gave the pet a new bed.
Here, 'zwierzakowi' is incorrectly used; it should be 'na zwierzaka' since it follows the preposition 'na.'
Nigdy nie trzeba krzyczeć na zwierzakowi.
You should never yell at a pet.
The word 'zwierzakowi' is in the dative case, indicating the indirect object that benefits (the pet being helped by the medicine).