This is the 2098th most frequent German word.
wem
"Wem" means "whom" or "to whom" in English, used as the dative case of "wer" (who).
The word 'wem' is used as a dative case interrogative pronoun to ask about the recipient of an action.
Wem gibst du das Buch?
To whom are you giving the book?
Here, 'wem' functions as a dative pronoun in an indirect question, indicating the person the car belongs to.
Ich weiß nicht, wem dieses Auto gehört.
I don't know to whom this car belongs.
'Wem' is utilized as part of an indirect request involving a dative pronoun to specify the intended recipient of the gift.