This is the 5801st most frequent Turkish word.
sizlere
"To you" (plural or formal).
Sizlere is used here to directly address a group of people respectfully with the plural second person pronoun.
Sizlere en içten dileklerimle teşekkür ederim.
I thank you all with my sincerest wishes.
Sizlere is used here as an object pronoun in the dative case, indicating the recipients of the action.
Bu kitabı sizlere armağan ediyoruz.
We present this book to all of you.
Sizlere functions as a respectful address to a group, indicating the people receiving support.